Dynamical approach to ancilla-assisted quantum thermometry
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DOI: 10.1103/physreva.98.042124
Abstract: A scheme for improving the sensitivity of quantum thermometry is proposed where the sensing quantum system used to recover the temperature of an external bath is dynamically coupled with an external ancilla (a meter) via… read more here.
Keywords: thermometry; ancilla assisted; dynamical approach; quantum thermometry ... See more keywords
Ancilla-assisted linear optical Bell measurements and their optimality
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DOI: 10.1103/physreva.98.042323
Abstract: In the last decade Grice and Ewert and van Loock found linear optical networks achieving near-unit efficiency unambiguous Bell state discrimination, when fed with increasingly complex ancillary states. However, except for the vacuum ancilla case,… read more here.
Keywords: optimality; ancilla assisted; assisted linear; optical bell ... See more keywords