All macroscopic quantum states are fragile and hard to prepare
We study the effect of local decoherence on arbitrary quantum states. Adapting techniques developed in quantum metrology, we show that the action of generic local noise processes --though arbitrarily small-- always yields a state whose Quantum Fisher Information (QFI) with respect to local observabl...
| मुख्य लेखकों: | , , |
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| स्वरूप: | लेख |
| भाषा: | English |
| प्रकाशित: |
Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2019-01-01
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| श्रृंखला: | Quantum |
| ऑनलाइन पहुंच: | https://quantum-journal.org/papers/q-2019-01-25-118/pdf/ |