2.5k citations · 14.7k across the 62 of their papers we have counts for
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Probing topological entanglement on large scales
Robert Ott, Torsten V. Zache, Nishad Maskara +3
Topologically ordered quantum matter exhibits intriguing long-range patterns of entanglement, which reveal themselves in subsystem entropies. However, measuring such entropies, whi…
Quantum speedup for combinatorial optimization with flat energy landscapes
Madelyn Cain, Sambuddha Chattopadhyay, Jin-Guo Liu +3
Designing quantum algorithms with a speedup over their classical analogs is a central challenge in quantum information science. Motivated by recent experimental observations of a s…
Universal Quantum Computation in Globally Driven Rydberg Atom Arrays
Francesco Cesa, Hannes Pichler
We develop a model for quantum computation with Rydberg atom arrays, which only relies on global driving, without the need of local addressing of the qubits: any circuit is execute…
Fermionic quantum processing with programmable neutral atom arrays
Daniel González-Cuadra, Dolev Bluvstein, Marcin Kalinowski +10
Simulating the properties of many-body fermionic systems is an outstanding computational challenge relevant to material science, quantum chemistry, and particle physics. Although q…
Protocols for Rydberg entangling gates featuring robustness against quasi-static errors
Charles Fromonteil, Dolev Bluvstein, Hannes Pichler
We introduce a novel family of protocols for entangling gates for neutral atom qubits based on the Rydberg blockade mechanism. These protocols realize controlled-phase gates throug…
Enhancing Detection of Topological Order by Local Error Correction
Iris Cong, Nishad Maskara, Minh C. Tran +5
The exploration of topologically-ordered states of matter is a long-standing goal at the interface of several subfields of the physical sciences. Such states feature intriguing phy…
Quantum optimization with arbitrary connectivity using Rydberg atom arrays
Minh-Thi Nguyen, Jin-Guo Liu, Jonathan Wurtz +3
Programmable quantum systems based on Rydberg atom arrays have recently been used for hardware-efficient tests of quantum optimization algorithms [Ebadi et al., Science, 376, 1209…
Deterministic Generation of Multidimensional Photonic Cluster States with a Single Quantum Emitter
Vinicius S. Ferreira, Gihwan Kim, Andreas Butler +2
Multidimensional photonic graph states, such as cluster states, have prospective applications in quantum metrology, secure quantum communication, and measurement-based quantum comp…
Trimer states with topological order in Rydberg atom arrays
Giacomo Giudice, Federica Maria Surace, Hannes Pichler +1
Trimers are defined as two adjacent edges on a graph. We study the quantum states obtained as equal-weight superpositions of all trimer coverings of a lattice, with the constraint…
Quantum Optimization of Maximum Independent Set using Rydberg Atom Arrays
Sepehr Ebadi, Alexander Keesling, Madelyn Cain +21
Realizing quantum speedup for practically relevant, computationally hard problems is a central challenge in quantum information science. Using Rydberg atom arrays with up to 289 qu…
Dynamical preparation of quantum spin liquids in Rydberg atom arrays
Giuliano Giudici, Mikhail D. Lukin, Hannes Pichler
We theoretically analyze recent experiments [G. Semeghini et al., Science 374, 1242 (2021)] demonstrating the onset of a topological spin liquid using a programmable quantum simula…
Machine learning discovery of new phases in programmable quantum simulator snapshots
Cole Miles, Rhine Samajdar, Sepehr Ebadi +7
Machine learning has recently emerged as a promising approach for studying complex phenomena characterized by rich datasets. In particular, data-centric approaches lend to the poss…
Squeezing Quantum Many-Body Scars
Bennet Windt, Hannes Pichler
We develop an analytical approach for the description of quantum many-body scars in PXP models. We show that the scarred dynamics in the PXP model on a complete bipartite graph can…
Entanglement-Optimal Trajectories of Many-Body Quantum Markov Processes
Tatiana Vovk, Hannes Pichler
We develop a novel approach aimed at solving the equations of motion of open quantum many-body systems. It is based on a combination of generalized wave function trajectories and m…
Quantum Sampling Algorithms, Phase Transitions, and Computational Complexity
Dominik S. Wild, Dries Sels, Hannes Pichler +2
Drawing independent samples from a probability distribution is an important computational problem with applications in Monte Carlo algorithms, machine learning, and statistical phy…
Probing Topological Spin Liquids on a Programmable Quantum Simulator
Giulia Semeghini, Harry Levine, Alexander Keesling +13
Quantum spin liquids, exotic phases of matter with topological order, have been a major focus of explorations in physical science for the past several decades. Such phases feature…
Preparing random states and benchmarking with many-body quantum chaos
Joonhee Choi, Adam L. Shaw, Ivaylo S. Madjarov +11
Producing quantum states at random has become increasingly important in modern quantum science, with applications both theoretical and practical. In particular, ensembles of such r…
Quantum Phases of Matter on a 256-Atom Programmable Quantum Simulator
Sepehr Ebadi, Tout T. Wang, Harry Levine +12
Motivated by far-reaching applications ranging from quantum simulations of complex processes in physics and chemistry to quantum information processing, a broad effort is currently…
Quantum Sampling Algorithms for Near-Term Devices
Dominik S. Wild, Dries Sels, Hannes Pichler +2
Efficient sampling from a classical Gibbs distribution is an important computational problem with applications ranging from statistical physics over Monte Carlo and optimization al…
Quantum many-body scars from virtual entangled pairs
Sambuddha Chattopadhyay, Hannes Pichler, Mikhail D. Lukin +1
We study weak ergodicity breaking in a one-dimensional, nonintegrable spin-1 XY model. We construct for it an exact, highly excited eigenstate, which despite its large energy densi…
Parallel implementation of high-fidelity multi-qubit gates with neutral atoms
Harry Levine, Alexander Keesling, Giulia Semeghini +8
We report the implementation of universal two- and three-qubit entangling gates on neutral atom qubits encoded in long-lived hyperfine ground states. The gates are mediated by exci…
One-way quantum repeater based on near-deterministic photon-emitter interfaces
Johannes Borregaard, Hannes Pichler, Tim Schöder +3
We propose a novel one-way quantum repeater architecture based on photonic tree-cluster states. Encoding a qubit in a photonic tree-cluster protects the information from transmissi…
Emerging 2D Gauge theories in Rydberg configurable arrays
A. Celi, B. Vermersch, O. Viyuela +3
Solving strongly coupled gauge theories in two or three spatial dimensions is of fundamental importance in several areas of physics ranging from high-energy physics to condensed ma…
Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
Ahmed Omran, Harry Levine, Alexander Keesling +16
Quantum entanglement involving coherent superpositions of macroscopically distinct states is among the most striking features of quantum theory, but its realization is challenging,…