Spin squeezing: transforming one-axis-twisting into two-axis-twisting

Details Spin squeezing: transforming one-axis-twisting into two-axis-twisting Spin squeezing: transforming one-axis-twisting into two-axis-twisting

2011-05-03

arxiv.org/abs/1105.0466v1

Phys. Rev. Lett. 107, 013601 (2011)

Physics

Condensed Matter

Quantum Gases

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.107.013601

Squeezed spin states possess unique quantum correlation or entanglement that are of significant promises for advancing quantum information processing and quantum metrology. In recent back to back publications [C. Gross \textit{et al, Nature} \textbf{464}, 1165 (2010) and Max F. Riedel \textit{et al, Nature} \textbf{464}, 1170 (2010)], reduced spin fluctuations are observed leading to spin squeezing at -8.2dB and -2.5dB respectively in two-component atomic condensates exhibiting one-axis-twisting interactions (OAT). The noise reduction limit for the OAT interaction scales as $\propto 1/{N^{2/3}}$, which for a condensate with $N\sim 10^3$ atoms, is about 100 times below standard quantum limit. We present a scheme using repeated Rabi pulses capable of transforming the OAT spin squeezing into the two-axis-twisting type, leading to Heisenberg limited noise reduction $\propto 1/N$, or an extra 10-fold improvement for $N\sim 10^3$.

Affiliated with

Also associated with

No associations

Rating

Spin squeezing: transforming one-axis-twisting into two-axis-twisting 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 Spin squeezing: transforming one-axis-twisting into two-axis-twisting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin squeezing: transforming one-axis-twisting into two-axis-twisting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-692301