861 citations · 8.4k across the 131 of their papers we have counts for
7 papers · 2 filters
Large Matrix Quantum Mechanics as a Quantum Memory
ChunJun Cao, Gong Cheng, Brian Swingle
In this paper, we explore the possibility of building a quantum memory that is robust to thermal noise using large matrix quantum mechanics models. First, we investigate the ga…
Thermal Multi-scale Entanglement Renormalization Ansatz for Variational Gibbs State Preparation
Troy J. Sewell, Christopher David White, Brian Swingle
Many simulation tasks require that one first prepare a system's Gibbs state. We present a family of quantum circuits for variational preparation of thermal Gibbs states on a quantu…
Report of the Snowmass 2021 Theory Frontier Topical Group on Quantum Information Science
Simon Catterall, Roni Harnik, Veronika E. Hubeny +12
We summarize current and future applications of quantum information science to theoretical high energy physics. Three main themes are identified and discussed; quantum simulation,…
Linear Growth of Circuit Complexity from Brownian Dynamics
Shao-Kai Jian, Gregory Bentsen, Brian Swingle
We calculate the frame potential for Brownian clusters of spins or fermions with time-dependent all-to-all interactions. In both cases the problem can be mapped to an effective…
Efficient tensor network simulation of quantum many-body physics on sparse graphs
Subhayan Sahu, Brian Swingle
We study tensor network states defined on an underlying graph which is sparsely connected. Generic sparse graphs are expander graphs with a high probability, and one can represent…
Towards Quantum Gravity in the Lab on Quantum Processors
Illya Shapoval, Vincent Paul Su, Wibe de Jong +2
The holographic principle and its realization in the AdS/CFT correspondence led to unexpected connections between general relativity and quantum information. This set the stage for…
Scrambling Dynamics and Out-of-Time Ordered Correlators in Quantum Many-Body Systems: a Tutorial
Shenglong Xu, Brian Swingle
This tutorial article introduces the physics of quantum information scrambling in quantum many-body systems. The goals are to understand how to precisely quantify the spreading of…