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Energy measurements and preparation of canonical phase states of a nano-mechanical resonator

Energy measurements and preparation of canonical phase states of a nano-mechanical resonator
Energy measurements and preparation of canonical phase states of a nano-mechanical resonator
We show that a continuous quantum non-demolition measurement of the energy of a nanomechanical resonator can be achieved by monitoring the resonator with a single-electron transistor, or a quantum point contact, via a Cooper-pair box. This technique can further be used to prepare highly entangled states of two resonators, such as canonical phase reference states, and so-called noon states.
0295-5075
Jacobs, K.
97065a09-2fce-48b4-9607-5a61e1de103f
Jordan, A.N.
84198658-e6cc-404a-bd94-b9f11df97fe5
Irish, E.K.
b78b8d7c-c747-4437-bb6f-189186713998
Jacobs, K.
97065a09-2fce-48b4-9607-5a61e1de103f
Jordan, A.N.
84198658-e6cc-404a-bd94-b9f11df97fe5
Irish, E.K.
b78b8d7c-c747-4437-bb6f-189186713998

Jacobs, K., Jordan, A.N. and Irish, E.K. (2008) Energy measurements and preparation of canonical phase states of a nano-mechanical resonator. Europhysics Letters, 82 (1), [18003]. (doi:10.1209/0295-5075/82/18003).

Record type: Article

Abstract

We show that a continuous quantum non-demolition measurement of the energy of a nanomechanical resonator can be achieved by monitoring the resonator with a single-electron transistor, or a quantum point contact, via a Cooper-pair box. This technique can further be used to prepare highly entangled states of two resonators, such as canonical phase reference states, and so-called noon states.

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More information

Accepted/In Press date: 15 February 2008
e-pub ahead of print date: 12 March 2008

Identifiers

Local EPrints ID: 495167
URI: http://eprints.soton.ac.uk/id/eprint/495167
DOI: doi:10.1209/0295-5075/82/18003
ISSN: 0295-5075
PURE UUID: 05a4ac5c-67c2-4222-b4c1-a9881dd6400f
ORCID for E.K. Irish: ORCID iD orcid.org/0000-0003-0113-0977

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Date deposited: 30 Oct 2024 18:04
Last modified: 31 Oct 2024 02:47

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Contributors

Author: K. Jacobs
Author: A.N. Jordan
Author: E.K. Irish ORCID iD

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