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- W4283382776 abstract "Symmetry, irreversibility, and quantum coherence are foundational concepts in physics. Here, we present a universal trade-off relation that builds a bridge between these three concepts. This trade-off particularly reveals that (1) under a global symmetry, any attempt to induce local dynamics that change the conserved quantity will cause inevitable irreversibility, and (2) such irreversibility could be mitigated by quantum coherence. Our fundamental relation also admits broad applications in physics and quantum information processing. In the context of thermodynamics, we derive a trade-off relation between entropy production and quantum coherence in arbitrary isothermal processes. We also apply our relation to black hole physics and obtain a universal lower bound on how many bits of classical information thrown into a black hole become unreadable under the Hayden-Preskill model with the energy conservation law. This particularly shows that when the black hole is large enough, under suitable encoding, at least about $m/4$ bits of the thrown $m$ bits will be irrecoverable until 99 percent of the black hole evaporates. As an application to quantum information processing, we provide a lower bound on the coherence cost to implement an arbitrary quantum channel. We employ this bound to obtain a quantitative Wigner-Araki-Yanase theorem that comes with a clear operational meaning, as well as an error-coherence trade-off for unitary gate implementation and an error lower bound for approximate error correction with covariant encoding. Our main relation is based on quantum uncertainty relation, showcasing intimate connections between fundamental physical principles and ultimate operational capability." @default.
- W4283382776 created "2022-06-25" @default.
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- W4283382776 date "2022-06-22" @default.
- W4283382776 modified "2023-10-16" @default.
- W4283382776 title "Universal trade-off structure between symmetry, irreversibility, and quantum coherence in quantum processes" @default.
- W4283382776 doi "https://doi.org/10.48550/arxiv.2206.11086" @default.
- W4283382776 hasPublicationYear "2022" @default.
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