Coherence distillation machines are impossible in quantum thermodynamics
Can an idealised machine obtain pure coherent quantum states from mixed ones at a non-zero rate, or equivalently, can a machine distill synchronized quantum clocks starting from noisy ones? Iman Marvian demonstrates that this is impossible, even if the machine is allowed to spend an arbitrary amount...
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2020
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| Acceso en línea: | https://doaj.org/article/58314622634f46a6bad294c485ade0a3 |
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| Sumario: | Can an idealised machine obtain pure coherent quantum states from mixed ones at a non-zero rate, or equivalently, can a machine distill synchronized quantum clocks starting from noisy ones? Iman Marvian demonstrates that this is impossible, even if the machine is allowed to spend an arbitrary amount of work. |
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