Measuring nanomechanical motion with an imprecision far below the standard quantum limit

Details Measuring nanomechanical motion with an imprecision far below the standard quantum limit Measuring nanomechanical motion with an imprecision far below the standard quantum limit

2010-03-19

arxiv.org/abs/1003.3752v1

Physics

Quantum Physics

Scientific paper

We demonstrate a transducer of nanomechanical motion based on cavity enhanced optical near-fields capable of achieving a shot-noise limited imprecision more than 10 dB below the standard quantum limit (SQL). Residual background due to fundamental thermodynamical frequency fluctuations allows a total imprecision 3 dB below the SQL at room temperature (corresponding to 600 am/Hz^(1/2) in absolute units) and is known to reduce to negligible values for moderate cryogenic temperatures. The transducer operates deeply in the quantum backaction dominated regime, prerequisite for exploring quantum backaction, measurement-induced squeezing and accessing sub-SQL sensitivity using backaction evading techniques.

Affiliated with

Also associated with

No associations

Rating

Measuring nanomechanical motion with an imprecision far below the standard quantum limit does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measuring nanomechanical motion with an imprecision far below the standard quantum limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring nanomechanical motion with an imprecision far below the standard quantum limit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-354364