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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…
quant-ph2026
Mixed-State Long-Range Entanglement from Dimensional Constraints
Leonardo A. Lessa, Tsung-Cheng Lu
We present a new mechanism for long-range entanglement (LRE) in strongly symmetric many-body mixed states that does not rely on symmetry anomalies or long-range correlations. Our p…