Energy Measurements and Preparation of Canonical Phase States of a Nano-Mechanical Resonator

Jacobs, Kurt; Jordan, Andrew N.; Irish, Elinor K.

Energy Measurements and Preparation of Canonical Phase States of a Nano-Mechanical Resonator

Authors

Jacobs, Kurt

Jordan, Andrew N.

Irish, Elinor K.

Description

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 quantum point contact via a Cooper-pair box. This technique can further be used to prepare highly non-classical states of two resonators, such as canonical phase-reference states, and so-called "noon" states.
4 pages, revtex 4, 3 eps figures. v2: improvements to presentation