5 papers
Non-thermal pairing glue of electrons in the steady state
Michele Pini, Christian H. Johansen, Francesco Piazza
The paper extends Eliashberg theory to non‑equilibrium steady states using the Keldysh formalism and identifies a non‑thermal pairing glue that can enhance superconductivity, illus…
Formation of Cavity-Polaritons via High-Order Van Hove Singularities
Igor Gianardi, Michele Pini, Francesco Piazza
The paper proposes using engineered high‑order Van Hove singularities in the joint density of states of gapped ultracold‑atom lattices to enhance hybridization between interband ex…
The fate of the Fermi surface coupled to a single-wave-vector cavity mode
Bernhard Frank, Michele Pini, Johannes Lang +1
The electromagnetic field of standing-wave or ring cavities induces a spatially modulated, infinite-range interaction between atoms in an ultracold Fermi gas, with a single wavelen…
Controlling Collective Phenomena Via the Quantum State of Interaction-Mediators: Changing the Criticality of Photon-Mediated Superconductivity Via Fock States of Light
Ahana Chakraborty, Michele Pini, Martina S. Zündel +1
How are two-body scattering and the resulting collective phenomena affected by preparing the mediator of interactions in different quantum states? This question has recently become…
Cavity-induced Eliashberg effect: superconductivity vs charge density wave
Md Mursalin Islam, Michele Pini, R. Flores-Calderón +1
Recent experiments have shown that non-equilibrium effects can play a key role in cavity-based control of material phases, notably in systems with charge-density-wave order. Motiva…