Ultracold collisions of Cs in excited hyperfine and Zeeman states

Abstract

We investigate Cs+Cs scattering in excited Zeeman and hyperfine states. We calculate the real and imaginary parts of the s-wave scattering length; the imaginary part directly provides the rate coefficient for 2-body inelastic loss, while the real part allows us to identify regions of magnetic field where 3-body recombination will be slow. We identify field regions where Cs in its $(f,m_f)=(3,+2)$ and $(3,+1)$ states may be stable enough to allow Bose-Einstein condensation, and additional regions for these and the $(3,0)$ and $(3,-3)$ states where high-density clouds should be long-lived.

7 pages, 3 figures

References in corpus (15)

• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Creation of ultracold ${}^{87}$RbCs molecules in the rovibrational ground state
• Feshbach resonances in ultracold K(39)
• MOLSCAT: a program for non-reactive quantum scattering calculations on atomic and molecular collisions
• Fermion-Mediated Interactions Between Bosonic Atoms
• Feshbach resonances in ultracold atomic and molecular collisions: threshold behaviour and suppression of poles in scattering lengths
• Feshbach resonances, weakly bound molecular states and coupled-channel potentials for cesium at high magnetic fields
• Magnetic field control of elastic scattering in a cold gas of fermionic lithium atoms
• The Bose polaron problem: effect of mass imbalance on binding energy
• Contrasting the wide Feshbach resonances in ${}^6$Li and ${}^7$Li
• Strongly correlated Bose gases
• Feshbach spectroscopy of an ultracold mixture of ${}^{85}$Rb and ${}^{133}$Cs
• Feshbach resonances, molecular bound states and prospects of ultracold molecule formation in mixtures of ultracold K and Cs
• Ultracold collisions of Cs in excited hyperfine and Zeeman states
• Mobile magnetic impurities in a Fermi superfluid: a route to designer molecules

Cited by in corpus (7)

• Overlapping Bose-Einstein Condensates of ${}^{23}$Na and ${}^{133}$Cs
• Magnetic Feshbach resonances in ultracold collisions between Cs and Yb atoms
• Frustrated extended Bose-Hubbard model and deconfined quantum critical points with optical lattices at the anti-magic wavelength
• Ultracold collisions of Cs in excited hyperfine and Zeeman states
• Feshbach Spectroscopy of Cs Atom Pairs in Optical Tweezers
• Fitting ultracold resonances without a fit
• Formation of ultracold ${}^{39}$K${}^{133}$Cs Feshbach molecules