Amplitude and phase mode in a Bose Einstein condensate

Details Amplitude and phase mode in a Bose Einstein condensate Amplitude and phase mode in a Bose Einstein condensate

2011-09-15

arxiv.org/abs/1109.3377v1

Physics

Condensed Matter

Quantum Gases

3 pages, 2 figures

Scientific paper

We show that starting from the Heisenberg equations of motion for Bose
annihilation and creation operators and using an appropriate transformation, we
can split the Bogoliubov mode into a free particle mode and the amplitude mode.
We show this for both the free Bose gas as well as the Bose gas in an optical
lattice.

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