# Continuous-Variable Assisted Thermal Quantum Simulation.

@article{Zhang2021ContinuousVariableAT, title={Continuous-Variable Assisted Thermal Quantum Simulation.}, author={Dan-Bo Zhang and Guo-Qing Zhang and Zheng‐Yuan Xue and Shi-Liang Zhu and Z. D. Wang}, journal={Physical review letters}, year={2021}, volume={127 2}, pages={ 020502 } }

Simulation of a quantum many-body system at finite temperatures is crucially important but quite challenging. Here we present an experimentally feasible quantum algorithm assisted with continuous variable for simulating quantum systems at finite temperatures. Our algorithm has a time complexity scaling polynomially with the inverse temperature and the desired accuracy. We demonstrate the quantum algorithm by simulating a finite temperature phase diagram of the quantum Ising and Kitaev models…

## 4 Citations

Locating quantum critical points with shallow quantum circuits

- Physics, Education
- 2022

Quantum critical point is one key concept for studying many-body physics but its investigation may be resource-demanding even for a quantum computer due to the intrinsic complexity. In this paper, we…

Many-body thermodynamics on quantum computers via partition function zeros

- PhysicsScience Advances
- 2021

This work shows how to find partition function zeros on noisy intermediate-scale trapped-ion quantum computers in a scalable manner, using the XXZ spin chain model as a prototype, and observes their transition from XY-like behavior to Ising-likebehavior as a function of the anisotropy.

Quantum Gaussian filter for exploring ground-state properties

- Physics, Education
- 2021

Min-Quan He, Dan-Bo Zhang, 3, ∗ and Z. D. Wang † Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Department of Physics, and HKU-UCAS Joint Institute for Theoretical and Computational Physics…

Selected topics of quantum computing for nuclear physics*

- Physics
- 2020

How quantum gauge fields~(both Abelian and non-Abelian) and its coupling to matter field can be mapped and studied on a quantum computer and related quantum algorithms for solving static properties and real-time evolution for quantum systems are introduced.

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