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quant-ph2026
Discontinuous strong-to-weak symmetry breaking transition from thermal pure states
Taiki Haga, Masaya Kunimi, Masaya Nakagawa
We investigate the nonequilibrium dynamics of strong-to-weak spontaneous symmetry breaking in many-body quantum systems undergoing decoherence from thermal pure states. For generic…
quant-ph2026
Performance Comparison of QAOA Mixers for Ternary Portfolio Optimization
Shintaro Yamamura, Satoshi Watanabe, Masaya Kunimi +2
The Quantum Approximate Optimization Algorithm (QAOA) is a quantum algorithm proposed for Noisy Intermediate-Scale Quantum (NISQ) devices and is regarded as a promising approach to…