output
20122026
most citedLogical quantum processor based on reconfigurable atom arrays

1.1k citations

Showing 2020 · quant-phShow all

47 papers · 2 filters

quant-ph2020★ 35 cited

Programmable Quantum Annealers as Noisy Gibbs Samplers

Marc Vuffray, Carleton Coffrin, Yaroslav A. Kharkov +1

Drawing independent samples from high-dimensional probability distributions represents the major computational bottleneck for modern algorithms, including powerful machine learning…

quant-ph2020★ 4 cited

Quantum teleportation and entanglement swapping with long baseline in outer space

Shih-Yuin Lin, B. L. Hu

Quantum information experiments applying quantum optics in outer space with a very long baseline may have advantages over the current earth-bound experiments or the earth-to-satell…

quant-ph2020★ 159 cited

Entanglement and purification transitions in non-Hermitian quantum mechanics

Sarang Gopalakrishnan, Michael J. Gullans

A quantum system subject to continuous measurement and post-selection evolves according to a non-Hermitian Hamiltonian. We show that, as one increases the rate of post-selection, t…

quant-ph2020★ 56 cited

Energy storage and coherence in closed and open quantum batteries

Francesco Caravelli, Bin Yan, Luis Pedro Garcia-Pintos +1

We study the role of coherence in closed and open quantum batteries. We obtain upper bounds to the work performed or energy exchanged by both closed and open quantum batteries in t…

quant-ph2020★ 3 cited

Approximating the two-mode two-photon Rabi model

David H. Wu, Victor V. Albert

The Rabi model describes the simplest nontrivial interaction between a few-level system and a bosonic mode, featuring in multiple seemingly unrelated systems of importance to quant…

quant-ph2020★ 54 cited

Quantum-accelerated multilevel Monte Carlo methods for stochastic differential equations in mathematical finance

Dong An, Noah Linden, Jin-Peng Liu +3

Inspired by recent progress in quantum algorithms for ordinary and partial differential equations, we study quantum algorithms for stochastic differential equations (SDEs). Firstly…

quant-ph2020★ 15 cited

Optimal tests for continuous-variable quantum teleportation and photodetectors

Kunal Sharma, Barry C. Sanders, Mark M. Wilde

Quantum teleportation is a primitive in several important applications, including quantum communication, quantum computation, error correction, and quantum networks. In this work,…

quant-ph2020★ 24 cited

Optimal Measurement of Field Properties with Quantum Sensor Networks

Timothy Qian, Jacob Bringewatt, Igor Boettcher +2

We consider a quantum sensor network of qubit sensors coupled to a field analytically parameterized by the vector of parameters . The qubit sensors are fi…

quant-ph2020★ 247 cited

Efficient quantum algorithm for dissipative nonlinear differential equations

Jin-Peng Liu, Herman Øie Kolden, Hari K. Krovi +3

Nonlinear differential equations model diverse phenomena but are notoriously difficult to solve. While there has been extensive previous work on efficient quantum algorithms for li…

quant-ph2020★ 64 cited

Quantum coding with low-depth random circuits

Michael J. Gullans, Stefan Krastanov, David A. Huse +2

Random quantum circuits have played a central role in establishing the computational advantages of near-term quantum computers over their conventional counterparts. Here, we use en…

quant-ph2020★ 6 cited

Circulation by microwave-induced vortex transport for signal isolation

Brittany Richman, Jacob M. Taylor

Magnetic fields break time-reversal symmetry, which is leveraged in many settings to enable the nonreciprocal behavior of light. This is the core physics of circulators and other e…

quant-ph2020★ 39 cited

Optimal State Transfer and Entanglement Generation in Power-law Interacting Systems

Minh C. Tran, Abhinav Deshpande, Andrew Y. Guo +2

We present an optimal protocol for encoding an unknown qubit state into a multiqubit Greenberger-Horne-Zeilinger-like state and, consequently, transferring quantum information in l…

quant-ph2020★ 7 cited

Tunable three-body loss in a nonlinear Rydberg medium

Dalia P. Ornelas Huerta, Przemyslaw Bienias, Alexander N. Craddock +7

Long-range Rydberg interactions, in combination with electromagnetically induced transparency (EIT), give rise to strongly interacting photons where the strength, sign, and form of…

quant-ph2020★ 6 cited

Fast simulation of planar Clifford circuits

David Gosset, Daniel Grier, Alex Kerzner +1

A general quantum circuit can be simulated classically in exponential time. If it has a planar layout, then a tensor-network contraction algorithm due to Markov and Shi has a runti…

quant-ph2020★ 4 cited

Approximate optimization of MAXCUT with a local spin algorithm

Aniruddha Bapat, Stephen P. Jordan

Local tensor methods are a class of optimization algorithms that was introduced in [Hastings,arXiv:1905.07047v2][1] as a classical analogue of the quantum approximate optimization…

quant-ph2020★ 118 cited

Symmetry breaking and error correction in open quantum systems

Simon Lieu, Ron Belyansky, Jeremy T. Young +3

Symmetry-breaking transitions are a well-understood phenomenon of closed quantum systems in quantum optics, condensed matter, and high energy physics. However, symmetry breaking in…

quant-ph2020★ 44 cited

Weak Measurement of Superconducting Qubit Reconciles Incompatible Operators

Jonathan T. Monroe, Nicole Yunger Halpern, Taeho Lee +1

Traditional uncertainty relations dictate a minimal amount of noise in incompatible projective quantum measurements. However, not all measurements are projective. Weak measurements…

quant-ph2020★ 63 cited

Cost of quantum entanglement simplified

Xin Wang, Mark M. Wilde

Quantum entanglement is a key physical resource in quantum information processing that allows for performing basic quantum tasks such as teleportation and quantum key distribution,…

quant-ph2020★ 13 cited

Security Limitations of Classical-Client Delegated Quantum Computing

Christian Badertscher, Alexandru Cojocaru, Léo Colisson +4

Secure delegated quantum computing allows a computationally weak client to outsource an arbitrary quantum computation to an untrusted quantum server in a privacy-preserving manner.…

quant-ph2020★ 100 cited

Conformal field theories are magical

Christopher David White, ChunJun Cao, Brian Swingle

"Magic" is the degree to which a state cannot be approximated by Clifford gates. We study mana, a measure of magic, in the ground state of the Potts model, and argue…

quant-ph2020★ 806 cited

Noise-Induced Barren Plateaus in Variational Quantum Algorithms

Samson Wang, Enrico Fontana, M. Cerezo +4

Variational Quantum Algorithms (VQAs) may be a path to quantum advantage on Noisy Intermediate-Scale Quantum (NISQ) computers. A natural question is whether noise on NISQ devices p…

quant-ph2020★ 19 cited

Importance of the spectral gap in estimating ground-state energies

Abhinav Deshpande, Alexey V. Gorshkov, Bill Fefferman

The field of quantum Hamiltonian complexity lies at the intersection of quantum many-body physics and computational complexity theory, with deep implications to both fields. The ma…

quant-ph2020★ 11 cited

Quantum algorithms for escaping from saddle points

Chenyi Zhang, Jiaqi Leng, Tongyang Li

We initiate the study of quantum algorithms for escaping from saddle points with provable guarantee. Given a function , our quantum algorithm ou…

quant-ph2020★ 22 cited

Optical quantum memory for noble-gas spins based on spin-exchange collisions

Or Katz, Roy Shaham, Eran Reches +2

Optical quantum memories, which store and preserve the quantum state of photons, rely on a coherent mapping of the photonic state onto matter states that are optically accessible.…