Collective excitations and instability of an optical lattice due to unbalanced pumping

Abstract

We solve self-consistently the coupled equations of motion for trapped particles and the field of a one-dimensional optical lattice. Optomechanical coupling creates long-range interaction between the particles, whose nature depends crucially on the relative power of the pump beams. For asymmetric pumping, traveling density wave-like collective oscillations arise in the lattice, even in the overdamped limit. Increasing the lattice size or pump asymmetry these waves can destabilize the lattice.

arXiv comment5 pages, minor changes (SI units, new references)

References in corpus (10)

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Cited by in corpus (13)

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• Quantum stability of self-organized atomic insulator-like states in optical resonators
• Scattering theory of cooling and heating in opto-mechanical systems
• Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane
• Hybrid Quantum System of a Nanofiber Mode Coupled to Two Chains of Optically Trapped Atoms
• Combined feedback and sympathetic cooling of a mechanical oscillator coupled to ultracold atoms
• Self-organization of atoms coupled to a chiral reservoir
• Enhancing Light-Atom Interactions via Atomic Bunching
• Collective scattering and oscillation modes of optically bound point particles trapped in a single mode waveguide field
• Exploring phonon-like interactions in one-dimensional Bose-Fermi mixtures
• Observe novel tricritical phenomena in self-organized Fermi gas induced by higher order Fermi surface nesting