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Measure synchronization in quantum many-body systems
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The concept of measure synchronization between two coupled quantum many-body systems is presented. In general terms we consider two quantum many-body systems whose dynamics gets coupled through the contact particle-particle interaction. This coupling is shown to produce measure synchronization, a generalization of synchrony to a large class of systems which takes place in absence of dissipation. We find that in quantum measure synchronization, the many-body quantum properties for the two subsystems, e.g., condensed fractions and particle fluctuations, behave in a coordinated way. To illustrate the concept we consider a simple case of two species of bosons occupying two distinct quantum states. Measure synchronization can be readily explored with state-of-the-art techniques in ultracold atomic gases and, if properly controlled, be employed to build targeted quantum correlations in a sympathetic way.
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QIU, Haibo, JULIÁ-DÍAZ, Bruno, GARCIA-MARCH, M. a., POLLS MARTÍ, Artur. Measure synchronization in quantum many-body systems. _Physical Review A_. 2014. Vol. 90, núm. 3, pàgs. 033603. [consulta: 21 de gener de 2026]. ISSN: 1050-2947. [Disponible a: https://hdl.handle.net/2445/99606]