Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state

Details Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state

2010-06-08

arxiv.org/abs/1006.1645v3

Physics

Quantum Physics

4 pages, 3 figures, v3 is modified in response to referee comments

Scientific paper

Phase precision in optimal 2-channel quantum interferometry is studied in the limit of large photon number $N\gg 1$, for losses occurring in either one or both channels. For losses in one channel an optimal state undergoes an intriguing sequence of local bifurcations as the losses or the number of photons increase. We further show that fixing the loss paramater determines a scale for quantum metrology -- a crossover value of the photon number $N_c$ beyond which the supra-classical precision is progressively lost. For large losses the optimal state also has a different structure from those considered previously.

Affiliated with

Also associated with

No associations

Rating

Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state 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 Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-30896