Collective excitation frequencies of bosons in a parabolic potential with interparticle harmonic interactions
نویسندگان
چکیده
منابع مشابه
Collective excitation frequencies of Bosons in a parabolic potential with interparticle harmonic interactions
The fact that the ground-state first-order density matrix for Bosons in a parabolic potential with interparticle harmonic interactions is known in exact form is here exploited to study collective excitations in the weak-coupling regime. Oscillations about the ground-state density are treated analytically by a linearized equation of motion which includes a kinetic energy contribution. We show th...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2000
ISSN: 0375-9601
DOI: 10.1016/s0375-9601(00)00123-7