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Classical and Quantum Signatures of Quantum Phase Transitions in a (Pseudo) Relativistic Many-Body System

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Nitsch, Maximilian ; Geiger, Benjamin ; Richter, Klaus ; Urbina, Juan Diego
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 20 Apr 2020 10:51


We identify a (pseudo) relativistic spin-dependent analogue of the celebrated quantum phase transition driven by the formation of a bright soliton in attractive one-dimensional bosonic gases. In this new scenario, due to the simultaneous existence of the linear dispersion and the bosonic nature of the system, special care must be taken with the choice of energy region where the transition takes ...


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