Decoherence limits the cost to simulate an anharmonic oscillator
We study how decoherence increases the efficiency with which we can simulate the
quantum dynamics of an anharmonic oscillator, governed by the Kerr effect. As decoherence …
quantum dynamics of an anharmonic oscillator, governed by the Kerr effect. As decoherence …
Decoherence limiting the cost to simulate an anharmonic oscillator
We study how decoherence increases the efficiency with which we can simulate the
quantum dynamics of an anharmonic oscillator governed by the Kerr effect. As decoherence …
quantum dynamics of an anharmonic oscillator governed by the Kerr effect. As decoherence …
Efficient Simulation of Open Quantum Systems on NISQ Devices
Simulating open quantum systems, which interact with external environments, presents
significant challenges on noisy intermediate-scale quantum (NISQ) devices due to limited …
significant challenges on noisy intermediate-scale quantum (NISQ) devices due to limited …
Optimized noise-assisted simulation of the Lindblad equation with time-dependent coefficients on a noisy quantum processor
JD Guimarães, A Ruiz-Molero, J Lim, MI Vasilevskiy… - Physical Review A, 2024 - APS
Noise in quantum devices is generally considered detrimental to computational accuracy.
However, the recent proposal of noise-assisted simulation has demonstrated that noise can …
However, the recent proposal of noise-assisted simulation has demonstrated that noise can …
Noise-resilient quantum dynamics using symmetry-preserving ansatzes
We describe and demonstrate a method for the computation of quantum dynamics on small,
noisy universal quantum computers. This method relies on the idea ofrestarting'the …
noisy universal quantum computers. This method relies on the idea ofrestarting'the …
Toward quantum simulation of non-Markovian open quantum dynamics: A universal and compact theory
Non-Markovianity, the intricate dependence of an open quantum system on its temporal
evolution history, holds tremendous implications across various scientific disciplines …
evolution history, holds tremendous implications across various scientific disciplines …
Stochastic simulation of dissipative quantum oscillators
Generic open quantum systems are notoriously difficult to simulate unless one looks at
specific regimes. In contrast, classical dissipative systems can often be effectively described …
specific regimes. In contrast, classical dissipative systems can often be effectively described …
Error-mitigated deep-circuit quantum simulation of open systems: Steady state and relaxation rate problems
A Wang, J Zhang, Y Li - Physical Review Research, 2022 - APS
Deep-circuit quantum computation, like Shor's algorithm, is undermined by error
accumulation, and near-future quantum techniques are far from adequate for full-fledged …
accumulation, and near-future quantum techniques are far from adequate for full-fledged …
Quasi-Lindblad pseudomode theory for open quantum systems
We introduce a new framework to study the dynamics of open quantum systems with linearly
coupled Gaussian baths. Our approach replaces the continuous bath with an auxiliary …
coupled Gaussian baths. Our approach replaces the continuous bath with an auxiliary …
Semiclassical Dynamics in Wigner Phase Space I: Adiabatic Hybrid Wigner Dynamics
S Malpathak, N Ananth - arXiv preprint arXiv:2405.20493, 2024 - arxiv.org
The Wigner phase space formulation of quantum mechanics is a complete framework for
quantum dynamic calculations that elegantly highlights connections with classical dynamics …
quantum dynamic calculations that elegantly highlights connections with classical dynamics …