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Lieb-Schultz-Mattis Constraints for Quantum Channels: A Spacetime-Duality View
Sarang Gopalakrishnan, Yu-Jie Liu, Tsung-Cheng Lu +2
Quantum anomalies strongly constrain the possible behavior of many-body systems. A prime example is the Lieb-Schultz-Mattis (LSM) theorem, which relates UV symmetry and filling con…
Intrinsic mixed-state SPT from modulated symmetries and hierarchical structure of anomaly
Yizhi You, Masaki Oshikawa
We introduce a class of intrinsic symmetry-protected topological mixed-state(mSPT) in open quantum systems that feature modulated symmetries, such as dipole and subsystem symmetrie…
Spontaneous Strong Symmetry Breaking in Open Systems: Purification Perspective
Pablo Sala, Sarang Gopalakrishnan, Masaki Oshikawa +1
We explore the landscape of the decoherence effect in mixed-state ensembles from a purification perspective. We analyze the spontaneous strong-to-weak symmetry breaking (SSSB) in m…