Collective excitations of a strongly-correlated non-equilibrium photon fluid across the Mott/superfluid phase transition

• URL: http://arxiv.org/abs/2211.07246v1
• Date: Mon, 14 Nov 2022 10:02:59 GMT
• Title: Collective excitations of a strongly-correlated non-equilibrium photon fluid across the Mott/superfluid phase transition
• Authors: Fabio Caleffi, Massimo Capone, Iacopo Carusotto
• Abstract summary: We develop a Gutzwiller theory for the non-equilibrium steady states of a strongly-interacting photon fluid driven by a non-Markovian incoherent pump. Our results appear as experimentally accessible to state-of-the-art circuit-QED devices and open the way for driven-dissipative fluids of light as quantum simulators of novel many-body scenarios.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We develop a Gutzwiller theory for the non-equilibrium steady states of a strongly-interacting photon fluid driven by a non-Markovian incoherent pump. In particular, we explore the collective excitation modes across the out-of-equilibrium Mott/superfluid transition, characterizing the diffusive Goldstone mode in the superfluid phase and the particle/hole excitations in the insulating one. Observable features in the pump-and-probe optical response of the system are highlighted. Our results appear as experimentally accessible to state-of-the-art circuit-QED devices and open the way for driven-dissipative fluids of light as quantum simulators of novel many-body scenarios.

Related papers

• Hard excitation mode of system with optomechanical instability [49.1574468325115]
  We show that it is possible to achieve hard mode of excitation when jump increase in the photon intensity takes place. The discovered hard excitation mode paves the way for creation highly sensitive sensors and optical transistors.
  arXiv  Detail & Related papers  (2023-10-27T21:30:11Z)
• Quantum Multiphoton Rabi Oscillations in Waveguide QED [0.0]
  Future of quantum information processing hinges on chip-scale nanophotonics, specifically cavity QED and waveguide QED. One of the foremost processes underpinning quantum photonic technologies is the phenomenon of Rabi oscillations. We analytically explore the scattering dynamics of the photonic Fock state as it interfaces with a two-level emitter.
  arXiv  Detail & Related papers  (2023-10-24T00:03:38Z)
• Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion [0.0]
  Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We show that sufficiently large intersite interactions allow for an interaction-induced recovery of Thouless pumps. Our results provide a new mechanism to stabilize Thouless pumps in interacting quantum systems.
  arXiv  Detail & Related papers  (2023-08-25T13:34:42Z)
• Quantum Fluids of Light [0.0]
  Quantum fluids of light are ensembles of photons that acquire a finite mass from spatial confinement or diffraction. The peculiar properties of these fluids are highlighted in comparison with standard condensed matter systems. Perspectives towards a new generation of experiments on strongly correlated fluids of light and towards opto-electronic applications are sketched.
  arXiv  Detail & Related papers  (2022-11-20T13:40:57Z)
• Probing the symmetry breaking of a light--matter system by an ancillary qubit [50.591267188664666]
  Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena. We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator. This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
  arXiv  Detail & Related papers  (2022-09-13T06:14:08Z)
• Moir\'e-induced optical non-linearities: Single and multi-photon resonances [0.0]
  Moir'e excitons promise a new platform with which to generate and manipulate hybrid quantum phases of light and matter. We show that the steady states exhibit a rich phase diagram with pronounced bi-stabilities governed by multi-photon resonances. In the presence of an incoherent pumping of excitons we find that the system can realise one- and multi-photon lasers.
  arXiv  Detail & Related papers  (2021-08-13T11:47:44Z)
• A low-loss ferrite circulator as a tunable chiral quantum system [108.66477491099887]
  We demonstrate a low-loss waveguide circulator constructed with single-crystalline yttrium iron garnet (YIG) in a 3D cavity. We show the coherent coupling of its chiral internal modes with integrated superconducting niobium cavities. We also probe experimentally the effective non-Hermitian dynamics of this system and its effective non-reciprocal eigenmodes.
  arXiv  Detail & Related papers  (2021-06-21T17:34:02Z)
• Topologically Protecting Squeezed Light on a Photonic Chip [58.71663911863411]
  Integrated photonics offers an elegant way to increase the nonlinearity by confining light strictly inside the waveguide. We experimentally demonstrate the topologically protected nonlinear process of spontaneous four-wave mixing enabling the generation of squeezed light on a silica chip.
  arXiv  Detail & Related papers  (2021-06-14T13:39:46Z)
• Subdiffusion via Disordered Quantum Walks [52.77024349608834]
  We experimentally prove the feasibility of disordered quantum walks to realize a quantum simulator that is able to model general subdiffusive phenomena. Our experiment simulates such phenomena by means of a finely controlled insertion of various levels of disorder during the evolution of the walker. This allows us to explore the full range of subdiffusive behaviors, ranging from anomalous Anderson localization to normal diffusion.
  arXiv  Detail & Related papers  (2020-07-24T13:56:09Z)
• Engineering multipartite entangled states in doubly pumped parametric down-conversion processes [68.8204255655161]
  We investigate the quantum state generated by optical parametric down-conversion in a $chi(2) $ medium driven by two modes. The analysis shows the emergence of multipartite, namely 3- or 4-partite, entangled states in a subset of the modes generated by the process.
  arXiv  Detail & Related papers  (2020-07-23T13:53:12Z)
• Dissipative dynamical Casimir effect in terms of the complex spectral analysis in the symplectic-Floquet space [2.7539573422730204]
  We study the dynamical Casimir effect of the optomechanical cavity interacting with one-dimensional photonic crystal. The quantum vacuum fluctuation of the intra-cavity mode is parametrically amplified by a periodic motion of the mirror boundary. We have found that the nonlocal stationary eigenmode appears when the mixing between the cavity mode and the photonic band is caused by the indirect virtual transition.
  arXiv  Detail & Related papers  (2020-05-31T21:42:21Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.