6 papers
Observation of Strong-to-Weak Spontaneous Symmetry Breaking in a Dephased Fermi Gas
Si Wang, Thomas G. Kiely, Dorothee Tell +9
Symmetry-based classification of quantum phases of matter is one of the most foundational organizing principles in physics; however, an analogous framework for mixed, decohered qua…
Strong-to-Weak Symmetry Breaking in Open Quantum Systems: From Discrete Particles to Continuum Hydrodynamics
Jacob Hauser, Kaixiang Su, Hyunsoo Ha +6
We explore the onset of spontaneous strong-to-weak symmetry breaking (SW-SSB) under U(1)-symmetric (i.e., charge-conserving) open-system dynamics. We define this phenomenon for qua…
Observation of disorder-induced superfluidity
Nicole Ticea, Elias Portoles, Eliott Rosenberg +298
The emergence of states with long-range correlations in a disordered landscape is rare, as disorder typically suppresses the particle mobility required for long-range coherence. Bu…
Phase Transition of Topological Index driven by Dephasing
Thomas G. Kiely, Cenke Xu
We study topological insulators under dephasing noise. With examples of both a Chern insulator and a topological insulator protected by time-reversal symmetry, we demonst…
Effective Conformal Field Theory generated from Pure and Dephased Chern insulator
Abhijat Sarma, Yimu Bao, Nayan Myerson-Jain +2
We demonstrate that the fidelity between two states with different Chern numbers serves as a generating theory for an effective conformal fi…
Spin Liquid and Superconductivity emerging from Steady States and Measurements
Kaixiang Su, Abhijat Sarma, Marcus Bintz +4
We demonstrate that, starting with a simple fermion wave function, the steady mixed state of the evolution of a class of Lindbladians, and the ensemble created by strong local meas…