Publications (135)
Mixed-state entanglement from local randomized measurements
Andreas Elben, Richard Kueng, Hsin-Yuan Huang +8
We propose a method for detecting bipartite entanglement in a many-body mixed state based on estimating moments of the partially transposed density matrix. The estimates are obtain…
Predicting Many Properties of a Quantum System from Very Few Measurements
Hsin-Yuan Huang, Richard Kueng, John Preskill
Predicting properties of complex, large-scale quantum systems is essential for developing quantum technologies. We present an efficient method for constructing an approximate class…
Fault-tolerant quantum computation versus Gaussian noise
Hui Khoon Ng, John Preskill
We study the robustness of a fault-tolerant quantum computer subject to Gaussian non-Markovian quantum noise, and we show that scalable quantum computation is possible if the noise…
Confinement-Higgs transition in a disordered gauge theory and the accuracy threshold for quantum memory
Chenyang Wang, Jim Harrington, John Preskill
We study the +/- J random-plaquette Z_2 gauge model (RPGM) in three spatial dimensions, a three-dimensional analog of the two-dimensional +/- J random-bond Ising model (RBIM). The…
Predicting adaptively chosen observables in quantum systems
Jerry Huang, Laura Lewis, Hsin-Yuan Huang +1
Recent advances have demonstrated that measurements suffice to predict properties of arbitrarily large quantum many-body systems. However, these remarkabl…
Is there evidence for exponential quantum advantage in quantum chemistry?
Seunghoon Lee, Joonho Lee, Huanchen Zhai +15
The idea to use quantum mechanical devices to simulate other quantum systems is commonly ascribed to Feynman. Since the original suggestion, concrete proposals have appeared for si…
Code properties from holographic geometries
Fernando Pastawski, John Preskill
Almheiri, Dong, and Harlow [arXiv:1411.7041] proposed a highly illuminating connection between the AdS/CFT holographic correspondence and operator algebra quantum error correction…
Towards sample-optimal learning of bosonic Gaussian quantum states
Senrui Chen, Francesco Anna Mele, Marco Fanizza +5
Continuous-variable systems enable key quantum technologies in computation, communication, and sensing. Bosonic Gaussian states emerge naturally in various such applications, inclu…
Negative energies and the breakdown of bulk geometry
John Preskill, Mykhaylo Usatyuk, Shreya Vardhan
One central question in quantum gravity is to understand how and why predictions from semiclassical gravity can break down in regimes with low spacetime curvature. One diagnostic o…
Superselection rules and quantum protocols
Alexei Kitaev, Dominic Mayers, John Preskill
We show that superselection rules do not enhance the information-theoretic security of quantum cryptographic protocols. Our analysis employs two quite different methods. The first…
Quantum Field Theory of Nonabelian Strings and Vortices
Mark Alford, Kai-Ming Lee, John March-Russell +1
We develop an operator formalism for investigating the properties of nonabelian cosmic strings (and vortices) in quantum field theory. Operators are constructed that introduce clas…
Quantum Simulation for High Energy Physics
Christian W. Bauer, Zohreh Davoudi, A. Baha Balantekin +28
It is for the first time that Quantum Simulation for High Energy Physics (HEP) is studied in the U.S. decadal particle-physics community planning, and in fact until recently, this…
Error correction for encoded quantum annealing
Fernando Pastawski, John Preskill
Recently, Lechner, Hauke and Zoller [Science Advances, 1(9)e1500838, (2015)] have proposed a quantum annealing architecture, in which a classical spin glass with all-to-all connect…
Efficient Networks for Quantum Factoring
David Beckman, Amalavoyal N. Chari, Srikrishna Devabhaktuni +1
We consider how to optimize memory use and computation time in operating a quantum computer. In particular, we estimate the number of memory qubits and the number of operations req…
Do Black Holes Destroy Information?
John Preskill
I review the information loss paradox that was first formulated by Hawking, and discuss possible ways of resolving it. All proposed solutions have serious drawbacks. I conclude tha…
Quantum Computing in the NISQ era and beyond
John Preskill
Noisy Intermediate-Scale Quantum (NISQ) technology will be available in the near future. Quantum computers with 50-100 qubits may be able to perform tasks which surpass the capabil…
Distributed quantum sensing enhanced by continuous-variable error correction
Quntao Zhuang, John Preskill, Liang Jiang
A distributed sensing protocol uses a network of local sensing nodes to estimate a global feature of the network, such as a weighted average of locally detectable parameters. In th…
Holographic quantum error-correcting codes: Toy models for the bulk/boundary correspondence
Fernando Pastawski, Beni Yoshida, Daniel Harlow +1
We propose a family of exactly solvable toy models for the AdS/CFT correspondence based on a novel construction of quantum error-correcting codes with a tensor network structure. O…
Cellular-automaton decoders with provable thresholds for topological codes
Aleksander Kubica, John Preskill
We propose a new cellular automaton (CA), the Sweep Rule, which generalizes Toom's rule to any locally Euclidean lattice. We use the Sweep Rule to design a local decoder for the to…
Opportunities for DOE National Laboratory-led QuantISED Experiments
Pete Barry, Karl Berggren, A. Baha Balantekin +24
A subset of QuantISED Sensor PIs met virtually on May 26, 2020 to discuss a response to a charge by the DOE Office of High Energy Physics. In this document, we summarize the QuantI…
Causal and localizable quantum operations
David Beckman, Daniel Gottesman, M. A. Nielsen +1
We examine constraints on quantum operations imposed by relativistic causality. A bipartite superoperator is said to be localizable if it can be implemented by two parties (Alice a…
Three-dimensional color code thresholds via statistical-mechanical mapping
Aleksander Kubica, Michael E. Beverland, Fernando Brandao +2
Three-dimensional (3D) color codes have advantages for fault-tolerant quantum computing, such as protected quantum gates with relatively low overhead and robustness against imperfe…
Black hole thermodynamics and information loss in two dimensions
Thomas M. Fiola, John Preskill, Andrew Strominger +1
Black hole evaporation is investigated in a (1+1)-dimensional model of quantum gravity. Quantum corrections to the black hole entropy are computed, and the fine-grained entropy of…
Learning to erase quantum states: thermodynamic implications of quantum learning theory
Haimeng Zhao, Yuzhen Zhang, John Preskill
The energy cost of erasing quantum states depends on our knowledge of the states. We show that learning algorithms can acquire such knowledge to erase many copies of an unknown sta…
Efficient soft-output decoders for the surface code
Nadine Meister, Christopher A. Pattison, John Preskill
Decoders that provide an estimate of the probability of a logical failure conditioned on the error syndrome ("soft-output decoders") can reduce the overhead cost of fault-tolerant…
Mind the gaps: The fraught road to quantum advantage
Jens Eisert, John Preskill
Quantum computing is advancing rapidly, yet substantial gaps separate today's noisy intermediate-scale quantum (NISQ) devices from tomorrow's fault-tolerant application-scale quant…
Quantum computing 40 years later
John Preskill
Forty years ago, Richard Feynman proposed harnessing quantum physics to build a more powerful kind of computer. Realizing Feynman's vision is one of the grand challenges facing 21s…
Spin chains, defects, and quantum wires for the quantum-double edge
Victor V. Albert, David Aasen, Wenqing Xu +3
Non-Abelian defects that bind Majorana or parafermion zero modes are prominent in several topological quantum computation schemes. Underpinning their established understanding is t…
Resilience of the surface code to error bursts
Shi Jie Samuel Tan, Christopher A. Pattison, Matt McEwen +1
Quantum error correction works effectively only if the error rate of gate operations is sufficiently low. However, some rare physical mechanisms can cause a temporary increase in t…
Quantum information and precision measurement
Andrew M. Childs, John Preskill, Joseph Renes
We describe some applications of quantum information theory to the analysis of quantum limits on measurement sensitivity. A measurement of a weak force acting on a quantum system i…
Decay of Metastable Topological Defects
John Preskill, Alexander Vilenkin
We systematically analyze the decay of metastable topological defects that arise from the spontaneous breakdown of gauge or global symmetries. Quantum-mechanical tunneling rates ar…
Unitarity of black hole evaporation in final-state projection models
Seth Lloyd, John Preskill
Almheiri et al. have emphasized that otherwise reasonable beliefs about black hole evaporation are incompatible with the monogamy of quantum entanglement, a general property of qua…
Security of quantum key distribution with imperfect devices
Daniel Gottesman, Hoi-Kwong Lo, Norbert Lütkenhaus +1
We prove the security of the Bennett-Brassard (BB84) quantum key distribution protocol in the case where the source and detector are under the limited control of an adversary. Our…
Collisions of false-vacuum bubble walls in a quantum spin chain
Ashley Milsted, Junyu Liu, John Preskill +1
We simulate, using nonperturbative methods, the real-time dynamics of small bubbles of "false vacuum" in a quantum spin chain near criticality, where the low-energy physics is desc…
Hardware-efficient quantum error correction via concatenated bosonic qubits
Harald Putterman, Kyungjoo Noh, Connor T. Hann +118
In order to solve problems of practical importance, quantum computers will likely need to incorporate quantum error correction, where a logical qubit is redundantly encoded in many…
Semilocal Defects
John Preskill
I analyze the interplay of gauge and global symmetries in the theory of topological defects. In a two-dimensional model in which both gauge symmetries and {\it exact} global symmet…
Efficient estimation of Pauli observables by derandomization
Hsin-Yuan Huang, Richard Kueng, John Preskill
We consider the problem of jointly estimating expectation values of many Pauli observables, a crucial subroutine in variational quantum algorithms. Starting with randomized measure…
The Fibonacci scheme for fault-tolerant quantum computation
Panos Aliferis, John Preskill
We rigorously analyze Knill's Fibonacci scheme for fault-tolerant quantum computation, which is based on the recursive preparation of Bell states protected by a concatenated error-…
Comment on "The black hole final state"
Daniel Gottesman, John Preskill
Horowitz and Maldacena have suggested that the unitarity of the black hole S-matrix can be reconciled with Hawking's semiclassical arguments if a final-state boundary condition is…
When can classical neural networks represent quantum states?
Tai-Hsuan Yang, Mehdi Soleimanifar, Thiago Bergamaschi +1
A naive classical representation of an n-qubit state requires specifying exponentially many amplitudes in the computational basis. Past works have demonstrated that classical neura…
Emergent Quantum Mechanics at the Boundary of a Local Classical Lattice Model
Kevin Slagle, John Preskill
We formulate a conceptually new model in which quantum mechanics emerges from classical mechanics. Given a local Hamiltonian acting on qubits, we define a local classical m…
Foundations for learning from noisy quantum experiments
Hsin-Yuan Huang, Steven T. Flammia, John Preskill
Understanding what can be learned from experiments is central to scientific progress. In this work, we use a learning-theoretic perspective to study the task of learning physical o…
Quantum Hair on Black Holes
Sidney Coleman, John Preskill, Frank Wilczek
A black hole may carry quantum numbers that are {\it not} associated with massless gauge fields, contrary to the spirit of the ``no-hair'' theorems. We describe in detail two diffe…
The vast world of quantum advantage
Hsin-Yuan Huang, Soonwon Choi, Jarrod R. McClean +1
The quest to identify quantum advantages lies at the heart of quantum technology. While quantum devices promise extraordinary capabilities, from exponential computational speedups…
Protected gates for superconducting qubits
Peter Brooks, Alexei Kitaev, John Preskill
We analyze the accuracy of quantum phase gates acting on "0- qubits" in superconducting circuits, where the gates are protected against thermal and Hamiltonian noise by continu…
Quantum Algorithms for Quantum Field Theories
Stephen P. Jordan, Keith S. M. Lee, John Preskill
Quantum field theory reconciles quantum mechanics and special relativity, and plays a central role in many areas of physics. We develop a quantum algorithm to compute relativistic…
Reliable Quantum Computers
John Preskill
The new field of quantum error correction has developed spectacularly since its origin less than two years ago. Encoded quantum information can be protected from errors that arise…
Provably efficient machine learning for quantum many-body problems
Hsin-Yuan Huang, Richard Kueng, Giacomo Torlai +2
Classical machine learning (ML) provides a potentially powerful approach to solving challenging quantum many-body problems in physics and chemistry. However, the advantages of ML o…
Information-theoretic bounds on quantum advantage in machine learning
Hsin-Yuan Huang, Richard Kueng, John Preskill
We study the performance of classical and quantum machine learning (ML) models in predicting outcomes of physical experiments. The experiments depend on an input parameter and…
Secure quantum key distribution using squeezed states
Daniel Gottesman, John Preskill
We prove the security of a quantum key distribution scheme based on transmission of squeezed quantum states of a harmonic oscillator. Our proof employs quantum error-correcting cod…
On Detecting Discrete Cheshire Charge
Martin Bucher, Kai-Ming Lee, John Preskill
We analyze the charges carried by loops of string in models with non-abelian local discrete symmetry. The charge on a loop has no localized source, but can be detected by means of…
Accuracy threshold for postselected quantum computation
Panos Aliferis, Daniel Gottesman, John Preskill
We prove an accuracy threshold theorem for fault-tolerant quantum computation based on error detection and postselection. Our proof provides a rigorous foundation for the scheme su…
Quantum accuracy threshold for concatenated distance-3 codes
Panos Aliferis, Daniel Gottesman, John Preskill
We prove a new version of the quantum threshold theorem that applies to concatenation of a quantum code that corrects only one error, and we use this theorem to derive a rigorous l…
Achieving the Heisenberg limit in quantum metrology using quantum error correction
Sisi Zhou, Mengzhen Zhang, John Preskill +1
Quantum metrology has many important applications in science and technology, ranging from frequency spectroscopy to gravitational wave detection. Quantum mechanics imposes a fundam…
BQP-completeness of Scattering in Scalar Quantum Field Theory
Stephen P. Jordan, Hari Krovi, Keith S. M. Lee +1
Recent work has shown that quantum computers can compute scattering probabilities in massive quantum field theories, with a run time that is polynomial in the number of particles,…
Encoding a qubit in an oscillator
Daniel Gottesman, Alexei Kitaev, John Preskill
Quantum error-correcting codes are constructed that embed a finite-dimensional code space in the infinite-dimensional Hilbert space of a system described by continuous quantum vari…
Batched high-rate logical operations for quantum LDPC codes
Qian Xu, Hengyun Zhou, Dolev Bluvstein +5
High-rate quantum LDPC (qLDPC) codes reduce memory overhead by densely packing many logical qubits into a single block of physical qubits. Here we extend this concept to high-rate…
Quantum clock synchronization and quantum error correction
John Preskill
I consider quantum protocols for clock synchronization, and investigate in particular whether entanglement distillation or quantum error-correcting codes can improve the robustness…
Building a fault-tolerant quantum computer using concatenated cat codes
Christopher Chamberland, Kyungjoo Noh, Patricio Arrangoiz-Arriola +13
We present a comprehensive architectural analysis for a proposed fault-tolerant quantum computer based on cat codes concatenated with outer quantum error-correcting codes. For the…
Entanglement-enabled advantage for learning a bosonic random displacement channel
Changhun Oh, Senrui Chen, Yat Wong +8
We show that quantum entanglement can provide an exponential advantage in learning properties of a bosonic continuous-variable (CV) system. The task we consider is estimating a pro…
Beyond NISQ: The Megaquop Machine
John Preskill
Today's Noisy Intermediate-Scale Quantum (NISQ) computers have scientific value, but quantum machines with broad practical value must be protected against noise using quantum error…
Digital quantum simulations of scattering in quantum field theories using W states
Roland C. Farrell, Nikita A. Zemlevskiy, Marc Illa +1
High-energy particle collisions can convert energy into matter through the inelastic production of new particles. Quantum computers are an ideal platform for simulating the out-of-…
Complementarity and the unitarity of the black hole -matrix
Isaac H. Kim, John Preskill
Recently, Akers et al. proposed a non-isometric holographic map from the interior of a black hole to its exterior. Within this model, we study properties of the black hole -matr…
Learning -body Hamiltonians via compressed sensing
Muzhou Ma, Steven T. Flammia, John Preskill +1
We study the problem of learning a -body Hamiltonian with unknown Pauli terms that are not necessarily geometrically local. We propose a protocol that learns the Hamiltonian…
Quantum advantage in learning from experiments
Hsin-Yuan Huang, Michael Broughton, Jordan Cotler +8
Quantum technology has the potential to revolutionize how we acquire and process experimental data to learn about the physical world. An experimental setup that transduces data fro…
Provably accurate simulation of gauge theories and bosonic systems
Yu Tong, Victor V. Albert, Jarrod R. McClean +2
Quantum many-body systems involving bosonic modes or gauge fields have infinite-dimensional local Hilbert spaces which must be truncated to perform simulations of real-time dynamic…
Models of quantum complexity growth
Fernando G. S. L. Brandão, Wissam Chemissany, Nicholas Hunter-Jones +2
The concept of quantum complexity has far-reaching implications spanning theoretical computer science, quantum many-body physics, and high energy physics. The quantum complexity of…
Time-energy uncertainty relation for noisy quantum metrology
Philippe Faist, Mischa P. Woods, Victor V. Albert +3
Detection of weak forces and precise measurement of time are two of the many applications of quantum metrology to science and technology. We consider a quantum system initialized i…
Observable and computable entanglement in time
Alexey Milekhin, Zofia Adamska, John Preskill
We propose a novel family of entanglement measures for time-separated subsystems. Our definitions are applicable to any quantum system, continuous or discrete. To illustrate their…
The ghost in the radiation: Robust encodings of the black hole interior
Isaac H. Kim, Eugene Tang, John Preskill
We reconsider the black hole firewall puzzle, emphasizing that quantum error-correction, computational complexity, and pseudorandomness are crucial concepts for understanding the b…
Stochastic Error Cancellation in Analog Quantum Simulation
Yiyi Cai, Yu Tong, John Preskill
Analog quantum simulation is a promising path towards solving classically intractable problems in many-body physics on near-term quantum devices. However, the presence of noise lim…
End-to-End Efficient Quantum Thermal and Ground State Preparation Made Simple
Zhiyan Ding, Yongtao Zhan, John Preskill +1
We propose new quantum algorithms for thermal and ground state preparation based on system-bath interactions. These algorithms require only forward evolution under a system-bath Ha…
Fault-tolerant quantum computation against biased noise
Panos Aliferis, John Preskill
We formulate a scheme for fault-tolerant quantum computation that works effectively against highly biased noise, where dephasing is far stronger than all other types of noise. In o…
Enhanced estimation of quantum properties with common randomized measurements
Benoît Vermersch, Aniket Rath, Bharathan Sundar +3
We present a technique for enhancing the estimation of quantum state properties by incorporating approximate prior knowledge about the quantum state of interest. This method involv…
Secure quantum key distribution with an uncharacterized source
Masato Koashi, John Preskill
We prove the security of the Bennett-Brassard (BB84) quantum key distribution protocol for an arbitrary source whose averaged states are basis-independent, a condition that is auto…
Robust encoding of a qubit in a molecule
Victor V. Albert, Jacob P. Covey, John Preskill
We construct quantum error-correcting codes that embed a finite-dimensional code space in the infinite-dimensional Hilbert state space of rotational states of a rigid body. These c…
Combining dynamical decoupling with fault-tolerant quantum computation
Hui Khoon Ng, Daniel A. Lidar, John Preskill
We study how dynamical decoupling (DD) pulse sequences can improve the reliability of quantum computers. We prove upper bounds on the accuracy of DD-protected quantum gates and der…
State preparation and detection for quantum simulation of particle collisions
Federica Maria Surace, Sary Bseiso, John Preskill
The paper proposes practical protocols for preparing incoming wave‑packet states and detecting outgoing scattering products in analog and digital quantum simulators, using an auxil…
Quantum chaos in the sparse SYK model
Patrick Orman, Hrant Gharibyan, John Preskill
The Sachdev-Ye-Kitaev (SYK) model is a system of Majorana fermions with random interactions and strongly chaotic dynamics, which at low energy admits a holographically dual des…
Phase randomization improves the security of quantum key distribution
Hoi-Kwong Lo, John Preskill
Ideal quantum key distribution (QKD) protocols call for a source that emits single photon signals, but the sources used in typical practical realizations emit weak coherent states…
Certifying almost all quantum states with few single-qubit measurements
Hsin-Yuan Huang, John Preskill, Mehdi Soleimanifar
Certifying that an n-qubit state synthesized in the lab is close to the target state is a fundamental task in quantum information science. However, existing rigorous protocols eith…
State-dependent geometries from magic-enriched quantum codes
ChunJun Cao, Gong Cheng, Krishnanand Karthikeyan +2
Quantum error-correcting codes provide a powerful framework for emergent spacetime, yet existing holographic code models describe only quantum fields on a fixed background: in subs…
Hierarchical memories: Simulating quantum LDPC codes with local gates
Christopher A. Pattison, Anirudh Krishna, John Preskill
Constant-rate low-density parity-check (LDPC) codes are promising candidates for constructing efficient fault-tolerant quantum memories. However, if physical gates are subject to g…
Quantum Computation of Scattering in Scalar Quantum Field Theories
Stephen P. Jordan, Keith S. M. Lee, John Preskill
Quantum field theory provides the framework for the most fundamental physical theories to be confirmed experimentally and has enabled predictions of unprecedented precision. Howeve…
Near-optimal quantum metrology with few-qubit measurements
Liang Mao, Senrui Chen, Hsin-Yuan Huang +2
Quantum metrology, which addresses parameter estimation in quantum systems, has broad applications across science and technology. Conventional metrology protocols for multi-qubit s…
Measurability of Wilson loop operators
David Beckman, Daniel Gottesman, Alexei Kitaev +1
We show that the nondemolition measurement of a spacelike Wilson loop operator W(C) is impossible in a relativistic non-Abelian gauge theory. In particular, if two spacelike-separa…
Real-Time Scattering in Ising Field Theory using Matrix Product States
Raghav G. Jha, Ashley Milsted, Dominik Neuenfeld +2
We study scattering in Ising Field Theory (IFT) using matrix product states and the time-dependent variational principle. IFT is a one-parameter family of strongly coupled non-inte…
Fault-tolerant quantum computation with long-range correlated noise
Dorit Aharonov, Alexei Kitaev, John Preskill
We prove a new version of the quantum accuracy threshold theorem that applies to non-Markovian noise with algebraically decaying spatial correlations. We consider noise in a quantu…
Transversal dimension jump for product qLDPC codes
Christine Li, John Preskill, Qian Xu
We introduce transversal dimension jump, a code-switching protocol for lifted product (LP) quantum low-density parity-check (qLDPC) codes across different chain-complex dimensions,…
Quantum learning advantage on a scalable photonic platform
Zheng-Hao Liu, Romain Brunel, Emil E. B. Ãstergaard +12
Recent advancements in quantum technologies have opened new horizons for exploring the physical world in ways once deemed impossible. Central to these breakthroughs is the concept…
Topological quantum memory
Eric Dennis, Alexei Kitaev, Andrew Landahl +1
We analyze surface codes, the topological quantum error-correcting codes introduced by Kitaev. In these codes, qubits are arranged in a two-dimensional array on a surface of nontri…
Nature is stingy: Universality of Scrooge ensembles in quantum many-body systems
Wai-Keong Mok, Tobias Haug, Wen Wei Ho +1
Recent advances in quantum simulators allow direct experimental access to ensembles of pure states generated by measuring part of an isolated quantum many-body system. These projec…
Stochastic waveform estimation at the fundamental quantum limit
James W. Gardner, Tuvia Gefen, Simon A. Haine +4
Although measuring the deterministic waveform of a weak classical force is a well-studied problem, estimating a random waveform, such as the spectral density of a stochastic signal…
Local minima in quantum systems
Chi-Fang Chen, Hsin-Yuan Huang, John Preskill +1
Finding ground states of quantum many-body systems is known to be hard for both classical and quantum computers. As a result, when Nature cools a quantum system in a low-temperatur…
Learning to predict arbitrary quantum processes
Hsin-Yuan Huang, Sitan Chen, John Preskill
We present an efficient machine learning (ML) algorithm for predicting any unknown quantum process over qubits. For a wide range of distributions on…
The Physics of Quantum Information
John Preskill
Rapid ongoing progress in quantum information science makes this an apt time for a Solvay Conference focused on The Physics of Quantum Information. Here I review four intertwined t…
Optimal Bacon-Shor codes
John Napp, John Preskill
We study the performance of Bacon-Shor codes, quantum subsystem codes which are well suited for applications to fault-tolerant quantum memory because the error syndrome can be extr…
Chiral Lattice Gauge Theories from Symmetry Disentanglers
Ryan Thorngren, John Preskill, Lukasz Fidkowski
We propose a Hamiltonian framework for constructing chiral gauge theories on the lattice based on symmetry disentanglers: constant-depth circuits of local unitaries that transform…
The randomized measurement toolbox
Andreas Elben, Steven T. Flammia, Hsin-Yuan Huang +4
Increasingly sophisticated programmable quantum simulators and quantum computers are opening unprecedented opportunities for exploring and exploiting the properties of highly entan…
Observation of gravity-like signatures in holographic codes on a quantum computer
Debopriyo Biswas, Gong Cheng, Krishnanand Karthikeyan +12
The authors implement a holographic quantum error‑correcting code (the HaPPY code) on a trapped‑ion quantum computer and experimentally verify holographic entropy relations, includ…