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quant-ph2024
Spin Hamiltonian with large fourth order terms: Triple well potentials and Bloch sphere visualization
D. S. Lohr Robles, M. Grether, E. Lopez Moreno +1
We present a study of a general spin Hamiltonian with terms up to fourth order. With the coherent states the semiclassical potential is obtained and with catastrophe theory its par…
quant-ph2009★ 43 cited
Coherent State Description of the Ground State in the Tavis-Cummings Model and its Quantum Phase Transitions
Octavio Castanos, Ramon Lopez-Pena, Eduardo Nahmad-Achar +3
Quantum phase transitions and observables of interest of the ground state in the Tavis-Cummings model are analyzed, for any number of atoms, by using a tensorial product of coheren…