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An Atomtronic Flux Qubit: A ring lattice of Bose-Einstein condensates interrupted by three weak links
D. Aghamalyan, N. T. Nguyen, F. Auksztol +6
We study a physical system consisting of a Bose-Einstein condensate confined to a ring shaped lattice potential interrupted by three weak links. The system is assumed to be driven…
Entanglement convertibility by sweeping through the quantum phases of the alternating bonds chain
Yu-Chin Tzeng, Li Dai, M. -C. Chung +2
We study the entanglement structure and the topological edge states of the ground state of the spin-1/2 XXZ model with bond alternation. We employ parity-density matrix renormaliza…
Exact analysis of the spectral properties of the anisotropic two-bosons Rabi model
Shuai Cui, Jun-Peng Cao, Heng Fan +1
We introduce the anisotropic two-photon Rabi model in which the rotating and counter rotating terms enters along with two different coupling constants. Eigenvalues and eigenvectors…
Local reversibility and entanglement structure of many-body ground states
Tomotaka Kuwahara, Itai Arad, Luigi Amico +1
The low-temperature physics of quantum many-body systems is largely governed by the structure of their ground states. Minimizing the energy of local interactions, ground states oft…