Generation of thermofield double states and critical ground states with a quantum computer
Abstract
Our experiment prepares two types of nontrivial quantum states on a trapped ion quantum computer: the thermofield double state of the transverse-field Ising model at arbitrary temperature and the quantum critical state of the zero-temperature model. We use techniques motivated by the quantum approximate optimization algorithm, and we implement a hybrid quantum–classical optimization loop to prepare the quantum critical state. Our results pave the way for exploring strongly correlated models at finite temperature and teleportation protocols inspired by black hole physics.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 28, 2020
- Source ID
- 10.1073/pnas.2006337117
Entities
People
- A. Y. Matsuura
- Christopher Monroe
- Cinthia Huerta Alderete
- Daiwei Zhu
- K. A. Landsman
- N. H. Nguyen
- N. M. Linke
- S. Johri
- T. H. Hsieh
Organizations
- Air Force Office of Scientific Research
- Division of Physics
- Intel Corporation
- Intelligence Advanced Research Projects Activity
- Office of Basic Energy Sciences
- Perimeter Institute for Theoretical Physics
- United States Army
- University of Maryland