54 citations · 221 across the 15 of their papers we have counts for
6 papers · 1 filter
Demonstration of system-bath physics on a gate-based quantum computer
Pascal Stadler, Matteo Lodi, Andisheh Khedri +5
Algorithmic cooling can be used to find correlated states of many-body quantum systems. It is based on quantum circuits that perform nonunitary operations, whose implementation can…
A quantum algorithm for solving open system dynamics on quantum computers using noise
Juha Leppäkangas, Nicolas Vogt, Keith R. Fratus +6
In this paper we present a quantum algorithm that uses noise as a resource. The goal of our quantum algorithm is the calculation of operator averages of an open quantum system evol…
Describing Trotterized Time Evolutions on Noisy Quantum Computers via Static Effective Lindbladians
Keith R. Fratus, Kirsten Bark, Nicolas Vogt +4
We consider the extent to which a Trotterized time evolution implemented on a quantum computer is altered by the presence of decoherence. Given a specific set of assumptions regard…
Analyzing the spectral density of a perturbed analog quantum simulator using Keldysh formalism
Sebastian Zanker, Iris Schwenk, Jan-Michael Reiner +2
Simulation of interacting electron systems is one of the great challenges of modern quantum chemistry and solid state physics. Controllable quantum systems offer the opportunity to…
Reconstructing the ideal results of a perturbed analog quantum simulator
Iris Schwenk, Jan-Michael Reiner, Sebastian Zanker +3
Well-controlled quantum systems can potentially be used as quantum simulators. However, a quantum simulator is inevitably perturbed by coupling to additional degrees of freedom. Th…
Estimating the error of an analog quantum simulator by additional measurements
Iris Schwenk, Sebastian Zanker, Jan-Michael Reiner +2
We study an analog quantum simulator coupled to a reservoir with a known spectral density. The reservoir perturbs the quantum simulation by causing decoherence. The simulator is us…