Selective insulators and anomalous responses in correlated fermions with synthetic extra dimensions
We study a three-component fermionic fluid in an optical lattice in a regime of intermediate-to- strong interactions allowing for Raman processes connecting the different components, similar to those used to create artificial gauge fields (AGF). Using Dynamical Mean-Field Theory we show that the com...
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| creator | Lorenzo Del Re Capone, Massimo |
| description | We study a three-component fermionic fluid in an optical lattice in a regime of intermediate-to- strong interactions allowing for Raman processes connecting the different components, similar to those used to create artificial gauge fields (AGF). Using Dynamical Mean-Field Theory we show that the combined effect of interactions and AGFs induces a variety of anomalous phases in which different components of the fermionic fluid display qualitative differences, i.e., the physics is flavor-selective. Remarkably, the different components can display huge differences in the correlation effects, measured by their effective masses and non-monotonic behavior of their occupation number as a function of the chemical potential, signaling a sort of selective instability of the overall stable quantum fluid. |
| doi_str_mv | 10.48550/arxiv.1708.00310 |
| format | Article |
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Using Dynamical Mean-Field Theory we show that the combined effect of interactions and AGFs induces a variety of anomalous phases in which different components of the fermionic fluid display qualitative differences, i.e., the physics is flavor-selective. Remarkably, the different components can display huge differences in the correlation effects, measured by their effective masses and non-monotonic behavior of their occupation number as a function of the chemical potential, signaling a sort of selective instability of the overall stable quantum fluid.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1708.00310</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Chemical potential ; Correlation analysis ; Fermions ; Flavor (particle physics) ; Insulators ; Mean field theory ; Optical lattices ; Organic chemistry ; Physics - Quantum Gases ; Stability</subject><ispartof>arXiv.org, 2018-04</ispartof><rights>2018. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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| subjects | Chemical potential Correlation analysis Fermions Flavor (particle physics) Insulators Mean field theory Optical lattices Organic chemistry Physics - Quantum Gases Stability |
| title | Selective insulators and anomalous responses in correlated fermions with synthetic extra dimensions |
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