%0 Journal Article %1 PhysRevB.110.L060511 %A Kornich, Viktoriia %D 2024 %I American Physical Society %J Phys. Rev. B %K a %N 6 %P L060511 %R 10.1103/PhysRevB.110.L060511 %T Emergence of a condensate with finite-energy Cooper pairing in hybrid exciton/superconductor systems %U https://link.aps.org/doi/10.1103/PhysRevB.110.L060511 %V 110 %X We study theoretically a setup consisting of excitons formed in two valleys, with proximity-induced Cooper pairing, different in the conduction and valence bands. Due to the combination of a Coulomb interaction with superconducting proximity effects, Cooper pairing between electrons from conduction and valence bands from different valleys is formed. This finite-energy intervalley Cooper pairing has both even- and odd-frequency contributions. We show that there is a phase transition into the formation of a robust macroscopic condensate of such Cooper pairs and present characteristics of the corresponding Higgs modes.

@article{PhysRevB.110.L060511, abstract = {We study theoretically a setup consisting of excitons formed in two valleys, with proximity-induced Cooper pairing, different in the conduction and valence bands. Due to the combination of a Coulomb interaction with superconducting proximity effects, Cooper pairing between electrons from conduction and valence bands from different valleys is formed. This finite-energy intervalley Cooper pairing has both even- and odd-frequency contributions. We show that there is a phase transition into the formation of a robust macroscopic condensate of such Cooper pairs and present characteristics of the corresponding Higgs modes.}, added-at = {2024-08-19T11:02:53.000+0200}, author = {Kornich, Viktoriia}, biburl = {https://www.bibsonomy.org/bibtex/2ef57aca36967efb2fd0ca2a2bbe75ef2/ctqmat}, day = 14, description = {Phys. Rev. B 110, L060511 (2024) - Emergence of a condensate with finite-energy Cooper pairing in hybrid exciton/superconductor systems}, doi = {10.1103/PhysRevB.110.L060511}, interhash = {b85e209ff98c046815c96d453d24df20}, intrahash = {ef57aca36967efb2fd0ca2a2bbe75ef2}, journal = {Phys. Rev. B}, keywords = {a}, month = {08}, number = 6, numpages = {6}, pages = {L060511}, publisher = {American Physical Society}, timestamp = {2024-08-19T11:02:53.000+0200}, title = {Emergence of a condensate with finite-energy Cooper pairing in hybrid exciton/superconductor systems}, url = {https://link.aps.org/doi/10.1103/PhysRevB.110.L060511}, volume = 110, year = 2024 }