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quant-ph2026
Strong-to-Weak Spontaneous Symmetry Breaking
Chong Wang
Strong-to-weak spontaneous symmetry breaking (SW-SSB) has recently emerged as a useful framework for studying phases of matter in open systems, quantum or classical. Beginning with…
quant-ph2026
Local Strong-to-Weak Spontaneous Symmetry Breaking
Francisco Divi, Leonardo A. Lessa, Chong Wang
We propose a local notion of strong-to-weak spontaneous symmetry breaking (SW-SSB), through a local one-point fidelity correlator. Compared with the previous definition in terms of…
cond-mat.dis-nn2026
Order-disorder trade-off in dirty quantum systems
Jinmin Yi, Chong Wang
We prove a trade-off theorem for order and disorder parameters in one-dimensional quantum spin systems with quenched disorder. For a disordered ensemble with exact Ising symmetry a…