All-Optical Production of quantum degeneracy and molecular BEC of ${}^6$Li

Abstract

We achieve a highly degenerate and strongly interacting Fermi gas in a mixture of the two lowest hyperfine states of ${}^6$Li by direct evaporative cooling in a high power crossed optical dipole trap. The trap is loaded from a large atom number magneto-optical trap (MOT) which is realized by a laser system of 2.5-watts intracavity-frequency-doubled light output at 671 nm. With this system, we also demonstrate the production of a molecular Bose-Einstein condensates (mBEC), and observe the anisotropic expansion of Fermi gases in the so-called BEC-BCS crossover regime.

References in corpus (12)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Observation of a Strongly-Interacting Degenerate Fermi Gas of Atoms
• Observation of Bose-Einstein Condensation of Molecules
• Experimental Study of the BEC-BCS Crossover Region in Lithium 6
• Weakly bound dimers of fermionic atoms
• Exploring the Thermodynamics of a Universal Fermi Gas
• Molecular Probe of Pairing in the BEC-BCS Crossover
• Universal Quantum Viscosity in a Unitary Fermi Gas
• Virial Theorem and Universality in a Unitary Fermi Gas
• Observation of conformal symmetry breaking and scale invariance in expanding Fermi gases
• Limits of sympathetic cooling of fermions by zero temperature bosons due to particle losses

Cited by in corpus (8)

• Superadiabatic quantum friction suppression in finite-time thermodynamics
• Observation of the Efimovian Expansion in Scale Invariant Fermi Gases
• Shortcuts to adiabaticity in the strongly-coupled regime: nonadiabatic control of a unitary Fermi gas
• Methods for Preparing Quantum Gases of Lithium
• All-optical production of ${}^6\text{Li}$ molecular BEC in excited hyperfine levels
• Observation of Dynamical Super Efimovian Expansion in a Unitary Fermi Gas
• Simulating finite-time quantum isothermal processes with generic superconducting quantum circuit
• Speeding up quantum adiabatic processes with dynamical quantum geometric tensor