When and where
From: 12/2013 To: 12/2016
2012/12/10, Dr. Zoltan Kurucz (Wigner Research Cetre for Physics, Budapest)
Place: Seminar Room of Theoretical Physics Department
Title: Spin squeezing of multilevel atoms
We show that an ensemble of identical d-level atoms can be efficiently described by d-1 collective oscillator degrees of freedom in the vicinity of a product state. We apply our description to two kinds of spin squeezing having essentially different entanglement properties: (i) hen each spin-F atom is individually squeezed and (ii) when a particular collective atomic oscillator mode is squeezed. When combined in sequence, the order of the two methods is relevant in the final degree of squeezing.
 Z. Kurucz and K. Mølmer, Phys. Rev. A 81, 032314 (2010).