Formation of Ultracold Polar Molecules in the Rovibrational Ground State

Abstract

Ultracold LiCs molecules in the absolute ground state X1Sigma+, v'' = 0, J'' = 0 are formed via a single photoassociation step starting from laser-cooled atoms. The selective production of v'' = 0, J'' = 2 molecules with a 50-fold higher rate is also demonstrated. The rotational and vibrational state of the ground state molecules is determined in a setup combining depletion spectroscopy with resonant-enhanced multiphoton ionization time-of-flight spectroscopy. Using the determined production rate of up to 5 x 10(3) molecules/s, we describe a simple scheme which can provide large samples of externally and internally cold dipolar molecules.

Formation of classical crystals of dipolar particles in a helical geometry

“…A highly promising direction in cold atoms phyiscs is the experimental realization and exploration of homoand heteronuclear molecules at low temperatures [1][2][3][4][5][6][7][8][9]. The potential applications of such systems are wideranging within quantum simulation, information, computation, and metrology [10][11][12][13].…”

Dipoles on a two-leg ladder

“…Cold and ultracold molecules have recently become experimentally accessible [1][2][3][4][5][6][7][8][9] and such systems hold great promise for exploration of quantum systems with longrange and anisotropic interactions with applications to quantum simulation, quantum metrology, and quantum information and computation [10][11][12][13] . However, strong dipolar interactions can induce collapse instabilities 14 as well as strong chemical reaction losses 5 .…”

Dynamics of correlations in a quasi-two-dimensional dipolar Bose gas following a quantum quench

“…For example, the realization of quantum degenerate gases with large magnetic dipole moments [2][3][4][5][6], ongoing efforts to trap and cool polar molecules [7][8][9][10], experiments on Rydberg atoms [11], trapped ions [12,13], and atoms in high finesse optical cavities [14] have opened up the possibility of realizing ultra-cold atomic systems with long-range interactions, such as the anisotropic dipoledipole interaction [15][16][17][18]. Concurrently, better control over experimental parameters and high resolution imaging techniques have introduced new probes for exploring many-body physics, notable among which is the ability to study the dynamics of correlations following a nonadiabatic ramp (quench) of system parameters [19][20][21][22][23][24][25][26][27].…”