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quant-ph2017★ 17 cited
Spin-squeezed atomic crystal
Dariusz Kajtoch, Emilia Witkowska, Alice Sinatra
We propose a method to obtain a regular arrangement of two-level atoms in a three-dimensional optical lattice with unit filling, where all the atoms share internal state coherence…
quant-ph2015
Quantum dynamics generated by the two-axis counter-twisting Hamiltonian
Dariusz Kajtoch, Emilia Witkowska
We study the quantum dynamics generated by a two-axis counter-twisting Hamiltonian from an initial spin coherent state in a spin- ensemble. A characteristic feature of the two…