output
19912026
Showing 2022 · quant-phShow all

8 papers · 2 filters

quant-ph2022★ 14 cited

Minimum Trotterization Formulas for a Time-Dependent Hamiltonian

Tatsuhiko N. Ikeda, Asir Abrar, Isaac L. Chuang +1

When a time propagator for duration consists of two noncommuting parts , Trotterization approximately decomposes the propagator into a product of exponential…

quant-ph2022★ 50 cited

Quantum Cryptography in Algorithmica

William Kretschmer, Luowen Qian, Makrand Sinha +1

We construct a classical oracle relative to which yet single-copy secure pseudorandom quantum states exist. In the language of Impagliazzo's five worlds,…

quant-ph2022★ 5 cited

Probing fractional statistics in quantum simulators of spin liquid Hamiltonians

Shiyu Zhou, Maria Zelenayova, Oliver Hart +2

Recent advances in programmable quantum devices brought to the fore the intriguing possibility of using them to realise and investigate topological quantum spin liquid phases. This…

quant-ph2022★ 11 cited

Interferometry and higher-dimensional phase measurements using directionally unbiased linear optics

David S. Simon, Christopher R. Schwarze, Alexander V. Sergienko

Grover multiports are higher-dimensional generalizations of beam splitters, in which input to any one of the four ports has equal probability of exiting at any of the same four por…

quant-ph2022★ 249 cited

Quantum critical dynamics in a 5000-qubit programmable spin glass

Andrew D. King, Jack Raymond, Trevor Lanting +24

Experiments on disordered alloys suggest that spin glasses can be brought into low-energy states faster by annealing quantum fluctuations than by conventional thermal annealing. Du…

quant-ph2022★ 11 cited

Experimental limit on non-linear state-dependent terms in quantum theory

Mark Polkovnikov, Alexander V. Gramolin, David E. Kaplan +2

We report the results of an experiment that searches for causal non-linear state-dependent terms in quantum field theory. Our approach correlates a binary macroscopic classical vol…

quant-ph2022★ 73 cited

Counterdiabatic Optimised Local Driving

Ieva Čepaitė, Anatoli Polkovnikov, Andrew J. Daley +1

Adiabatic protocols are employed across a variety of quantum technologies, from implementing state preparation and individual operations that are building blocks of larger devices,…

quant-ph2022★ 17 cited

Entanglement Features of Random Neural Network Quantum States

Xiao-Qi Sun, Tamra Nebabu, Xizhi Han +2

Restricted Boltzmann machines (RBMs) are a class of neural networks that have been successfully employed as a variational ansatz for quantum many-body wave functions. Here, we deve…