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Univ. Paris-Saclay
Microscopical theory of a novel superfluid state with 3 competing intertwined orders and of its precursor phases
Dr Florina Onufrieva
Laboratoire Léon Brillouin
Mercredi 06/04/2022, 14:30-15:31
LLB - Bât 563 p15 (Grande Salle), CEA-Saclay

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Il sera également possible de suivre le séminaire à distance via le lien : https://meet.goto.com/755223525

 


Abstract :

We explore a novel quantum state characterized by three intertwined orders, two superfluid orders and one diagonal Long Range Order. All orders are spontaneous and are in competition when varying parameters. Their intertwining results in a remarkable non-conventional dynamics. Their competition ends by two quantum phase transitions into a one-component superfluid phase and anormal but ordered phase with a diagonal LRO. The phenomena are characteristic for quantum multi-level (n>2) systems with breakdown SU(2) symmetry of cooperative interactions. Potential applications range from condensed matter to atomic/molecular physics.

Contact : Alain MENELLE

 

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