3 papers
cond-mat.stat-mech2026
Charge Scrambling in Strong-to-Weak Spontaneous Symmetry Breaking
Jong Yeon Lee
Strong-to-weak spontaneous symmetry breaking (SWSSB) is diagnosed by nonlinear correlators, but its direct static implication for conserved charge fluctuations is not automatic. We…
cond-mat.stat-mech2026
Exact Calculations of Coherent Information for Toric Codes under Decoherence: Identifying the Fundamental Error Threshold
Jong Yeon Lee
The toric code is a canonical example of a topological error-correcting code. Two logical qubits stored within the toric code are robust against local decoherence, ensuring that th…
quant-ph2025
Coherent information for CSS codes under decoherence
Ryotaro Niwa, Jong Yeon Lee
Stabilizer codes lie at the heart of modern quantum-error-correcting codes (QECC). Of particular importance is a class called Calderbank-Shor-Steane (CSS) codes, which includes man…