Quantum dark soliton (qubits) in Bose Einstein condensates

Abstract

We study the possibility of using dark soliton in quasi one dimensional Bose Einstein condensates to produce two level system (qubits) by exploiting the intrinsic nonlinear and the coherent nature of the matter waves. We calculate the soliton spectrum and the conditions for a qubit to exist. We also compute the coupling between the phonons and the soliton and investigate the emission rate of the qubits in that case. Remarkably, the qubit lifetime is estimated to be of the order of a few seconds, being by the dark soliton "death" due to quantum evaporation.

arXiv commentBose Einstein condensates, Qubit, Dark Soliton

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• Dark quantum droplets and solitary waves in beyond-mean-field Bose-Einstein condensate mixtures
• Quantum dynamics of Bose-polaron in a $d$-dimensional Bose Einstein condensate
• Entanglement sudden death and revival in quantum dark-soliton qubits
• Ring dark solitons in three-dimensional Bose-Einstein condensates
• Universal evolution of non-classical correlations due to collective spontaneous emission
• Spontaneous generation of phononic entanglement in quantum dark-soliton qubits
• Long Josephson junctions with exciton-polariton condensates
• Synthetic superfluid chemistry with vortex-trapped quantum impurities
• Dynamics of interacting dark soliton stripes
• Dark-Antidark Spinor Solitons in Spin-1 Bose Gases
• Using dark solitons from a Bose-Einstein condensate necklace to imprint soliton states in the spectral memory of a free boson gas
• Coherent Impurity Transport in an Attractive Binary Bose-Einstein condensate
• Slow sound in matter-wave dark soliton gases
• Shape of a sound wave in a weakly-perturbed Bose gas
• Bound-state spectrum of an impurity in a quantum vortex
• Dynamical Instability of 3d Stationary and Traveling Planar Dark Solitons
• Hydrodynamic signatures and spectral properties of the quantum vortex
• Single impurity atom embedded in a dipolar two-soliton molecule as a qubit
• Square wave oscillation of soliton in double-well potential trapped BEC