.png){kind=icon}
返回
Towards a variational Jordan-Lee-Preskill quantum algorithm
.png){kind=icon}
OA
AI
DOI：10.1088/2632-2153/aca06b.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Rapid developments of quantum information technology show promising opportunities for simulating quantum field theory in near-term quantum devices. In this work, we formulate the theory of (time-dependent) variational quantum simulation of the 1 + 1 dimensional lambda phi(4) quantum field theory including encoding, state preparation, and time evolution, with several numerical simulation results. These algorithms could be understood as near-term variational quantum circuit (quantum neural network) analogs of the Jordan-Lee-Preskill algorithm, the basic algorithm for simulating quantum field theory using universal quantum devices. Besides, we highlight the advantages of encoding with harmonic oscillator basis based on the Lehmann-Symanzik-Zimmermann reduction formula and several computational efficiency such as when implementing a bosonic version of the unitary coupled cluster ansatz to prepare initial states. We also discuss how to circumvent the spectral crowding' problem in the quantum field theory simulation and appraise our algorithm by both state and subspace fidelities.
Keyword:
quantum physics
variational quantum algorithms
high energy physics
期刊
M
IF:
4.6
论文数:
1.1K
被引数:
3.4K
机构
引用论文
Efficient Variational Quantum Simulator Incorporating Active Error Minimization.png)
PHYSICAL REVIEW X
OAAI
PHYSICAL REVIEW XIF15.7
OAAI分享收藏分享收藏Determining eigenstates and thermal states on a quantum computer using quantum imaginary time evolutionNATURE PHYSICS
NATURE PHYSICSIF18.4
PREAI
分享收藏A variational eigenvalue solver on a photonic quantum processor光子量子处理器上的变分特征值求解器NATURE COMMUNICATIONSOAAI
NATURE COMMUNICATIONSIF15.7
OAAI分享收藏
查看更多内容