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

  title={Spin squeezing: transforming one-axis twisting into two-axis twisting.},
  author={Yangchen Liu and Z. F. Xu and Guang-Ri Jin and Li You},
  journal={Physical review letters},
  volume={107 1},
  • Y. Liu, Z. Xu, +1 author L. You
  • Published 3 May 2011
  • Physics, Medicine
  • Physical review letters
Squeezed spin states possess unique quantum correlation or entanglement and are significantly promising for advancing quantum information processing and quantum metrology. In recent back-to-back publications [C. Gross et al., Nature (London) 464, 1165 (2010) and Max F. Riedel et al., Nature (London) 464, 1170 (2010)], reduced spin fluctuations are observed leading to spin squeezing at -8.2 and -2.5 dB, respectively, in two-component atomic condensates exhibiting one-axis-twisting interactions… 

Figures and Topics from this paper

Two-axis-twisting spin squeezing by multipass quantum erasure
Many-body entangled states are key elements in quantum information science and quantum metrology. One important problem in establishing a high degree of many-body entanglement using optical
Spin squeezing via one- and two-axis twisting induced by a single off-resonance stimulated Raman scattering in a cavity
Squeezed spin states have important applications in quantum metrology and sensing. It has been shown by S{\o}rensen and M{\o}lmer [Phys. Rev. A 66, 022314(2002)] that an effective one-axis-twisting
One- and two-axis squeezing of atomic ensembles in optical cavities
The strong light-matter coupling attainable in optical cavities enables the generation of highly squeezed states of atomic ensembles. It was shown in [Phys. Rev. A 66, 022314 (2002)] how an effective
Engineering spin squeezing in a 3D optical lattice with interacting spin-orbit-coupled fermions
One of the most important tasks in modern quantum science is to coherently control and entangle many-body systems, and to subsequently use these systems to realize powerful quantum technologies such
Spin squeezing of one-axis twisting model in the presence of phase dephasing
A detailed analysis of spin squeezing of the one-axis twisting model with a many-body phase dephasing, which is induced by external field fluctuation in a two-mode Bose-Einstein condensates, shows that the optimal initial state corresponds to a coherent spin state.
Two-axis spin squeezing in two cavities
Ultracold atoms in an ultrahigh-finesse optical cavity are a powerful platform to produce spin squeezing since photon of cavity mode can induce nonlinear spin-spin interaction and thus generate a
Generating Stable Spin Squeezing by Squeezed-Reservoir Engineering.
This work proposes a scheme to generate stable SS resorting to neither the spin-spin coupling nor the coherent driving on the TLSs, and exhibits the advantages over previous ones in the scaling relation of the SS parameter with the number of the TLS's.
Spin squeezing under decoherence: Role of the quantum phase transition
In order to witness multipartite correlations beyond pairwise entanglement, we study the spin-squeezing evolution of a spin-1/2 ensemble in environments with quantum phase transitions. Each spin half
A hybrid-systems approach to spin squeezing using a highly dissipative ancillary system
Squeezed states of spin systems are an important entangled resource for quantum technologies, particularly quantum metrology and sensing. Here we consider the generation of spin squeezed states by
Tunable two-axis spin model and spin squeezing in two cavities*
Multi-mode cavities have now attracted much attention both experimentally and theoretically. In this paper, inspired by recent experiments of cavity-assisted Raman transitions, we realize a two-axis