Spectroscopy of dipolar fermions in layered two-dimensional and three-dimensional lattices
- JILA and Department of Physics, University of Colorado, Boulder, and NIST, Boulder, Colorado 80309-0440 (United States)
- Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125 (United States)
Motivated by ongoing measurements at JILA, we calculate the recoil-free spectra of dipolar interacting fermions, for example ultracold heteronuclear molecules, in a one-dimensional lattice of two-dimensional layers or ''pancakes'', spectroscopically probing transitions between different internal (e.g., rotational) states. We additionally incorporate p-wave interactions and losses, which are important for reactive molecules such as KRb. Moreover, we consider other sources of spectral broadening: interaction-induced quasiparticle lifetimes and the different polarizabilities of the rotational states used for the spectroscopy. Although our main focus is molecules, some of the calculations are also useful for optical lattice atomic clocks. For example, understanding the p-wave shifts between identical fermions and small dipolar interactions coming from the excited clock state is necessary to reach future precision goals. Finally, we consider the spectra in a deep three-dimensional lattice and show how they give a great deal of information about static correlation functions, including all the moments of the density correlations between nearby sites. The range of correlations measurable depends on spectroscopic resolution and the dipole moment.
- OSTI ID:
- 22068753
- Journal Information:
- Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ATOMIC CLOCKS
CORRELATION FUNCTIONS
CORRELATIONS
DENSITY
DIPOLE MOMENTS
FERMIONS
INTERACTIONS
LAYERS
LIFETIME
LINE BROADENING
MOLECULES
ONE-DIMENSIONAL CALCULATIONS
P WAVES
POLARIZABILITY
ROTATIONAL STATES
SPECTRA
SPECTROSCOPY
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS