Energy-level crossings and number-parity effects in a bosonic tunneling model
arXiv:1802.02044 · doi:10.1088/1361-6455/aac6f2
Abstract
An exactly solved bosonic tunneling model is studied along a line of the coupling parameter space, which includes a quantum phase boundary line. The entire energy spectrum is computed analytically, and found to exhibit multiple energy level crossings in a region of the coupling parameter space. Several key properties of the model are discussed, which exhibit a clear dependence on whether the particle number is even or odd.
12 pages, 7 figures
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