p-wave optical Feshbach resonances in {sup 171}Yb

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.062704· OSTI ID:21528885

Goyal, Krittika; Deutsch, Ivan ^[1]; Reichenbach, Iris ^[2]

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1. Center for Quantum Information and Control, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
2. Max Planck Institute for the Physics of Complex Systems, Noethnitzer Strasse 38, D-01187 Dresden (Germany)

We study the use of an optical Feshbach resonance to modify the p-wave interaction between ultracold polarized {sup 171}Yb spin-1/2 fermions. A laser exciting two colliding atoms to the {sup 1}S{sub 0}+{sup 3}P{sub 1} channel can be detuned near a purely-long-range excited molecular bound state. Such an exotic molecule has an inner turning point far from the chemical binding region, and thus, three-body recombination in the Feshbach resonance will be highly suppressed in contrast to that typically seen in a ground-state p-wave magnetic Feshbach resonance. We calculate the excited molecular bound-state spectrum using a multichannel integration of the Schroedinger equation, including an external perturbation by a magnetic field. From the multichannel wave functions, we calculate the Feshbach resonance properties, including the modification of the elastic p-wave scattering volume and inelastic spontaneous scattering rate. The use of magnetic fields and selection rules for polarized light yields a highly controllable system. We apply this control to propose a toy model for three-color superfluidity in an optical lattice for spin-polarized {sup 171}Yb, where the three colors correspond to the three spatial orbitals of the first excited p band. We calculate the conditions under which tunneling and on-site interactions are comparable, at which point quantum critical behavior is possible.

• OSTI ID: 21528885
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.062704; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM-ATOM COLLISIONS
ATOMS
BOUND STATE
COLOR
COLOR MODEL
DISTURBANCES
FERMIONS
INTERACTIONS
MAGNETIC FIELDS
MODIFICATIONS
MOLECULES
P WAVES
RECOMBINATION
RESONANCE
SCATTERING
SCHROEDINGER EQUATION
SELECTION RULES
SPIN
SPIN ORIENTATION
SUPERFLUIDITY
THREE-BODY PROBLEM
TUNNEL EFFECT
VISIBLE RADIATION
WAVE FUNCTIONS
YTTERBIUM 171
ANGULAR MOMENTUM
ATOM COLLISIONS
COLLISIONS
COMPOSITE MODELS
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
EVEN-ODD NUCLEI
FUNCTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MANY-BODY PROBLEM
MATHEMATICAL MODELS
NUCLEI
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
ORIENTATION
PARTIAL DIFFERENTIAL EQUATIONS
PARTIAL WAVES
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUARK MODEL
RADIATIONS
RARE EARTH NUCLEI
STABLE ISOTOPES
WAVE EQUATIONS
YTTERBIUM ISOTOPES