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20052026
most citedFeshbach Resonances in Ultracold Gases

3.9k citations

Showing 2021 · quant-phShow all

63 papers · 2 filters

quant-ph2021★ 135 cited

Digital Quantum Simulation of the Schwinger Model and Symmetry Protection with Trapped Ions

Nhung H. Nguyen, Minh C. Tran, Yingyue Zhu +4

Tracking the dynamics of physical systems in real time is a prime application of digital quantum computers. Using a trapped-ion system with up to six qubits, we simulate the real-t…

quant-ph2021★ 60 cited

Pauli stabilizer models of twisted quantum doubles

Tyler D. Ellison, Yu-An Chen, Arpit Dua +3

We construct a Pauli stabilizer model for every two-dimensional Abelian topological order that admits a gapped boundary. Our primary example is a Pauli stabilizer model on four-dim…

quant-ph2021★ 60 cited

Colloquium: Advances in automation of quantum dot devices control

Justyna P. Zwolak, Jacob M. Taylor

Arrays of quantum dots (QDs) are a promising candidate system to realize scalable, coupled qubit systems and serve as a fundamental building block for quantum computers. In such se…

quant-ph2021★ 23 cited

Interactive Protocols for Classically-Verifiable Quantum Advantage

Daiwei Zhu, Gregory D. Kahanamoku-Meyer, Laura Lewis +15

Achieving quantum computational advantage requires solving a classically intractable problem on a quantum device. Natural proposals rely upon the intrinsic hardness of classically…

quant-ph2021★ 1 cited

Experimental Measurement of Out-of-Time-Ordered Correlators at Finite Temperature

Alaina M. Green, A. Elben, C. Huerta Alderete +6

Out-of-time-ordered correlators (OTOCs) are a key observable in a wide range of interconnected fields including many-body physics, quantum information science, and quantum gravity.…

quant-ph2021★ 50 cited

Tight bounds on the convergence of noisy random circuits to the uniform distribution

Abhinav Deshpande, Pradeep Niroula, Oles Shtanko +3

We study the properties of output distributions of noisy, random circuits. We obtain upper and lower bounds on the expected distance of the output distribution from the "useless" u…

quant-ph2021★ 7 cited

Quantum Fourier transform on photonic qubits using cavity QED

Yu Shi, Edo Waks

We propose a quantum Fourier transform on photons in which a single atom-coupled cavity system mediates the photon-photon interactions. Our protocol utilizes time-delay feedback of…

quant-ph2021★ 62 cited

The Deep Space Quantum Link: Prospective Fundamental Physics Experiments using Long-Baseline Quantum Optics

Makan Mohageg, Luca Mazzarella, Dmitry V. Strekalov +19

The National Aeronautics and Space Administration's Deep Space Quantum Link mission concept enables a unique set of science experiments by establishing robust quantum optical links…

quant-ph2021★ 33 cited

Prospects for assembling ultracold radioactive molecules from laser-cooled atoms

Jacek Klos, Hui Li, Eite Tiesinga +1

Molecules with unstable isotopes often contain heavy and deformed nuclei and thus possess a high sensitivity to parity-violating effects, such as Schiff moments. Currently the best…

quant-ph2021★ 29 cited

Efficient Product Formulas for Commutators and Applications to Quantum Simulation

Yu-An Chen, Andrew M. Childs, Mohammad Hafezi +3

We construct product formulas for exponentials of commutators and explore their applications. First, we directly construct a third-order product formula with six exponentials by so…

quant-ph2021★ 21 cited

Optical transparency induced by a largely Purcell-enhanced quantum dot in a polarization-degenerate cavity

Harjot Singh, Demitry Farfurnik, Zhouchen Luo +3

Optically-active spin systems coupled to photonic cavities with high cooperativity can generate strong light-matter interactions, a key ingredient in quantum networks. But obtainin…

quant-ph2021★ 78 cited

Quantum Simulation of an Extended Fermi-Hubbard Model Using a 2D Lattice of Dopant-based Quantum Dots

Xiqiao Wang, Ehsan Khatami, Fan Fei +6

The Hubbard model is one of the primary models for understanding the essential many-body physics in condensed matter systems such as Mott insulators and cuprate high-Tc superconduc…

quant-ph2021★ 8 cited

Experimentally revealing anomalously large dipoles in a quantum-circuit dielectric

Liuqi Yu, Shlomi Matityahu, Yaniv J. Rosen +5

Quantum two-level systems (TLSs) intrinsic to glasses induce decoherence in many modern quantum devices, such as superconducting qubits. Although the low-temperature physics of the…

quant-ph2021★ 6 cited

Lefschetz Thimble Quantum Monte Carlo for Spin Systems

T. C. Mooney, Jacob Bringewatt, Neill C. Warrington +1

Monte Carlo simulations are useful tools for modeling quantum systems, but in some cases they suffer from a sign problem, leading to an exponential slow down in their convergence t…

quant-ph2021★ 8 cited

Minimum Entanglement Protocols for Function Estimation

Adam Ehrenberg, Jacob Bringewatt, Alexey V. Gorshkov

We derive a family of optimal protocols, in the sense of saturating the quantum Cramér-Rao bound, for measuring a linear combination of field amplitudes with quantum sensor net…

quant-ph2021★ 13 cited

Quantum computational advantage attested by nonlocal games with the cyclic cluster state

Austin K. Daniel, Yinyue Zhu, C. Huerta Alderete +7

We propose a set of Bell-type nonlocal games that can be used to prove an unconditional quantum advantage in an objective and hardware-agnostic manner. In these games, the circuit…

quant-ph2021★ 53 cited

Shadow process tomography of quantum channels

Jonathan Kunjummen, Minh C. Tran, Daniel Carney +1

Quantum process tomography is a critical capability for building quantum computers, enabling quantum networks, and understanding quantum sensors. Like quantum state tomography, the…

quant-ph2021★ 2 cited

Error metric for non-trace-preserving quantum operations

Yu Shi, Edo Waks

We study the problem of measuring errors in non-trace-preserving quantum operations, with a focus on their impact on quantum computing. We propose an error metric that efficiently…

quant-ph2021★ 13 cited

Fast Flux Entangling Gate for Fluxonium Circuits

Yinqi Chen, Konstantin N. Nesterov, Vladimir E. Manucharyan +1

We analyze a high-fidelity two-qubit gate using fast flux pulses on superconducting fluxonium qubits. The gate is realized by temporarily detuning magnetic flux through fluxonium l…

quant-ph2021★ 122 cited

Observation of a symmetry-protected topological time crystal with superconducting qubits

Xu Zhang, Wenjie Jiang, Jinfeng Deng +15

We report the observation of a symmetry-protected topological time crystal, which is implemented with an array of programmable superconducting qubits. Unlike the time crystals repo…

quant-ph2021★ 1 cited

Chaos-protected locality

Shao-Kai Jian, Brian Swingle

Microscopic speed limits that constrain the motion of matter, energy, and information abound in physics, from the "ultimate" speed limit set by light to Lieb-Robinson speed limits…

quant-ph2021★ 19 cited

Digital quantum simulation of NMR experiments

Kushal Seetharam, Debopriyo Biswas, Crystal Noel +8

Simulations of nuclear magnetic resonance (NMR) experiments can be an important tool for extracting information about molecular structure and optimizing experimental protocols but…

quant-ph2021★ 18 cited

Boosting the Quantum State of a Cavity with Floquet Driving

David M. Long, Philip J. D. Crowley, Alicia J. Kollár +1

The striking nonlinear effects exhibited by cavity QED systems make them a powerful tool in modern condensed matter and atomic physics. A recently discovered example is the quantiz…

quant-ph2021★ 8 cited

All-optical noise spectroscopy of a solid-state spin

Demitry Farfurnik, Harjot Singh, Zhouchen Luo +4

Noise spectroscopy elucidates the fundamental noise sources in spin systems, thereby serving as an essential tool toward developing spin qubits with long coherence times for quantu…