Tunneling dynamics of bosonic Josephson junctions assisted by a cavity field

Abstract

We study the interplay between the dynamics of a Bose-Einstein condensate in a double-well potential and that of an optical cavity mode. The cavity field is superimposed to the double-well potential and affects the atomic tunneling processes. The cavity field is driven by a laser red detuned from the bare cavity resonance; the dynamically changing spatial distribution of the atoms can shift the cavity in and out of resonance. At resonance the photon number is hugely enhanced and the atomic tunneling becomes amplified. The Josephson junction equations are revisited and the phase diagram is calculated. We find new solutions with finite imbalance and at the same time a lack of self-trapping solutions due to the emergence of a new separatrix resulting from enhanced tunneling.

References in corpus (38)

• Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
• The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
• Cold atoms in cavity-generated dynamical optical potentials
• Squeezing and entanglement in a Bose-Einstein condensate
• Chaos and the Quantum Phase Transition in the Dicke Model
• The Dicke model phase transition in the quantum motion of a Bose-Einstein condensate in an optical cavity
• An Atom Michelson Interferometer on a Chip Using a Bose-Einstein Condensate
• Gauge fields for ultracold atoms in optical superlattices
• Cold atom dynamics in a quantum optical lattice potential
• Ultracold atoms in optical lattices generated by quantized light fields
• Mott insulator states of ultracold atoms in optical resonators
• Dynamics of a tunable superfluid junction
• Fermionic Superradiance in a Transversely Pumped Optical Cavity
• Umklapp Superradiance from a Collisionless Quantum Degenerate Fermi Gas
• Superradiance of Degenerate Fermi Gases in a Cavity
• The quantum ground state of self-organized atomic crystals in optical resonators
• Macroscopic self trapping in BECs: analysis of a dynamical quantum phase transition
• Lattice supersolid phase of strongly correlated bosons in an optical cavity
• Quantum stability of self-organized atomic insulator-like states in optical resonators
• Coherence and entanglement in the ground-state of a bosonic Josephson junction:from macroscopic Schrödinger cats to separable Fock states
• Cavity-QED with cold atoms trapped in a double-well potential
• Homodyne Measurements on a Bose-Einstein Condensate
• Microscopic physics of quantum self-organisation of optical lattices in cavities
• Mean-field dynamics of a Bose Josephson junction in an optical cavity
• Atomic Josephson junction with two bosonic species
• Bose-Einstein Condensates on slightly asymmetric double-well potentials
• Rabi-Josephson oscillations and self-trapped dynamics in atomic junctions with two bosonic species
• Nonlinear quantum model for atomic Josephson junctions with one and two bosonic species
• Impurity in a bosonic Josephson junction: swallowtail loops, chaos, self-trapping and the poor man's Dicke model
• Impurity in a Bose-Einstein condensate in a double well
• Josephson oscillations and self-trapping of superfluid fermions in a double-well potential
• Cavity nonlinear optics with few photons and ultracold quantum particles
• Ultracold atoms in a cavity mediated double-well system
• Coherent single atom shuttle between two Bose-Einstein condensates
• A single fermion in a Bose Josephson Junction
• A Quantum Top Inside a Bose Josephson Junction
• Spontaneous symmetry breaking and collapse in bosonic Josephson junctions
• The effect of a laser dip in the semiclassical dynamics of bosonic Josephson Junctions

Cited by in corpus (6)

• Self-organised Limit-Cycles, Chaos and Phase-Slippage with a Superfluid inside an Optical Resonator
• Superradiance induced particle flow via dynamical gauge coupling
• Phonon Josephson Junction with Nanomechanical Resonators
• Anomalous Diffusion in a Dynamical Optical Lattice
• Photon-induced Self Trapping and Entanglement of a Bosonic Josephson Junction Inside an Optical Resonator
• Cooperatively-enhanced precision of hybrid light-matter sensors