Atomic selfordering in a ring cavity with counterpropagating pump

Abstract

The collective dynamics of mobile scatterers and light in optical resonators generates complex behaviour. For strong transverse illumination a phase transition from homogeneous to crystalline particle order appears. In contrast, a gas inside a single-side pumped ring cavity exhibits an instability towards bunching and collective acceleration called collective atomic recoil lasing (CARL). We demonstrate that by driving two orthogonally polarized counter propagating modes of a ring resonator one realises both cases within one system. The corresponding phase diagram depending on the two pump intensities exhibits regions in which either a generalized form of self-ordering towards a travelling density wave with constant centre of mass velocity or a CARL instability is formed. Controlling the cavity driving then allows to accelerate or slow down and trap a sufficiently dense beam of linearly polarizable particles.

5 pages

References in corpus (10)

• The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
• Cold atoms in cavity-generated dynamical optical potentials
• The Dicke model phase transition in the quantum motion of a Bose-Einstein condensate in an optical cavity
• Atom-light crystallization of BECs in multimode cavities: Nonequilibrium classical and quantum phase transitions, emergent lattices, supersolidity, and frustration
• Normal mode splitting and mechanical effects of an optical lattice in a ring cavity
• Steering matter wave superradiance with an ultra-narrowband optical cavity
• Self-Organization Threshold Scaling for Thermal Atoms Coupled to a Cavity
• Kinetic theory of cavity cooling and self-organisation of a cold gas
• Scattering approach to two-colour light forces and self-ordering of polarizable particles
• Self ordering and superradiant backscattering of a gaseous beam in a ring cavity with counter propagating pump

Cited by in corpus (8)

• Supersolid properties of a Bose-Einstein condensate in a ring resonator
• Driven-Dissipative Supersolid in a Ring Cavity
• Spontaneous crystallization of light and ultracold atoms
• Unraveling the quantum nature of atomic self-ordering in a ring cavity
• Engineering Many-Body Dynamics with Quantum Light Potentials and Measurements
• Cavity-induced emergent topological spin textures in a Bose Einstein condensate
• Self-trapped atomic matter wave in a ring cavity
• Collision of two self-trapped atomic matter wave packets in an optical ring cavity