Cross Feshbach resonance
arXiv:1803.05183 · doi:10.1103/PhysRevLett.122.047402
Abstract
Feshbach resonance occurs when a pair of free particles is resonantly coupled to a molecular bound state. In the field of ultracold quantum gases, atomic Feshbach resonances became a usual tool for tailoring atomic interactions opening up many new applications in this field. In a semiconductor microcavity, the Feshbach resonance appears when two lower polaritons are coupled to the molecular biexciton state. Here, we demonstrate the existence of a cross Feshbach resonance for which a pair of polaritons, lower together with upper, effectively couples to the biexciton state. This demonstration is a crucial step towards the efficient generation of entangled photon pairs in a semiconductor microcavity. The existence of a Cross Feshbach resonance establishes the condition to convert a pair of upper and lower polaritons via the biexciton state into two lower polaritons, paving the way for the generation of momentum and polarization entangled photons.
arXiv comment7 pages, 3 figures
References in corpus (25)
- Quantum Cryptography
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Observation of Superfluidity of Polaritons in Semiconductor Microcavities
- Dynamics of collapsing and exploding Bose-Einstein condensates
- Quantised Vortices in an Exciton-Polariton Fluid
- Tuning the scattering length with an optically induced Feshbach resonance
- Direct observation of Dirac cones and a flatband in a honeycomb lattice for polaritons
- Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate
- Bose polarons in the strongly interacting regime
- Bosonic Condensation and Disorder-Induced Localization in a Flat Band
- Polaritonic Feshbach Resonance
- Quantum depletion of a homogeneous Bose-Einstein condensate
- Ultrafast tristable spin memory of a coherent polariton gas
- Branch-entangled polariton pairs in planar microcavities and photonic wires
- Spontaneous spin bifurcations and ferromagnetic phase transitions in a spinor exciton-polariton condensate
- From single particle to superfuid excitations in a dissipative polariton gas
- Direct measure of the exciton formation in quantum wells from time resolved interband luminescence
- 2D Fourier Transform Spectroscopy of exciton-polaritons and their interactions
- Heterodyne Spectroscopy of Polariton Spinor Interactions
- Radiative corrections to the excitonic molecule state in GaAs microcavities
- Periodic squeezing in a polariton Josephson junction
- Spin anisotropic interactions of lower-polaritons in the vicinity of polaritonic Feshbach resonance
- Coherent and incoherent aspects of polariton dynamics in semiconductor microcavities
- Spinor Stochastic Resonance
Cited by in corpus (13)
- Attractive and repulsive exciton-polariton interactions mediated by an electron gas
- Mediated interactions and photon bound states in an exciton-polariton mixture
- Strong interactions and bi-excitons in a polariton mixture
- Pump Probe Spectroscopy of Bose Polarons: Dynamical Formation and Coherence
- Interactions mediated by atoms, photons, electrons, and excitons
- Theory of polariton-electron interactions in semiconductor microcavities
- Emergence of Crystalline Few-body Correlations in Mass-imbalanced Fermi Polarons
- The Fate of the Upper Polariton: Breakdown of the Quasiparticle Picture in the Continuum
- Bichromatic four-wave mixing and quadrature-squeezing from biexcitons in atomically thin semiconductor microcavities
- Polaritons for testing the universality of an impurity in a Bose-Einstein condensate
- Controllable Bistability and Squeezing of Confined Polariton Dark Solitons
- Controllable fusion of electromagnetic bosons in two-dimensional semiconductors
- Polaritonic Machine Learning for Graph-based Data Analysis