Details
| Original language | English |
|---|---|
| Article number | 030402 |
| Journal | Physical review letters |
| Volume | 104 |
| Issue number | 3 |
| Publication status | Published - 20 Jan 2010 |
| Externally published | Yes |
Abstract
We report the preparation of a rovibronic ground-state molecular quantum gas in a single hyperfine state and, in particular, the absolute lowest quantum state. This addresses the last internal degree of freedom remaining after the recent production of a near quantum degenerate gas of molecules in their rovibronic ground state, and provides a crucial step towards full control over molecular quantum gases. We demonstrate a scheme that is general for bialkali polar molecules and allows the preparation of molecules in a single hyperfine state or in an arbitrary coherent superposition of hyperfine states. The scheme relies on electric-dipole, two-photon microwave transitions through rotationally excited states and makes use of electric nuclear quadrupole interactions to transfer molecular population between different hyperfine states.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 104, No. 3, 030402, 20.01.2010.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Controlling the Hyperfine State of Rovibronic Ground-State Polar Molecules
AU - Ospelkaus, S.
AU - Ni, K. K.
AU - Quéméner, G.
AU - Neyenhuis, B.
AU - Wang, D.
AU - De Miranda, M. H.G.
AU - Bohn, J. L.
AU - Ye, J.
AU - Jin, D. S.
PY - 2010/1/20
Y1 - 2010/1/20
N2 - We report the preparation of a rovibronic ground-state molecular quantum gas in a single hyperfine state and, in particular, the absolute lowest quantum state. This addresses the last internal degree of freedom remaining after the recent production of a near quantum degenerate gas of molecules in their rovibronic ground state, and provides a crucial step towards full control over molecular quantum gases. We demonstrate a scheme that is general for bialkali polar molecules and allows the preparation of molecules in a single hyperfine state or in an arbitrary coherent superposition of hyperfine states. The scheme relies on electric-dipole, two-photon microwave transitions through rotationally excited states and makes use of electric nuclear quadrupole interactions to transfer molecular population between different hyperfine states.
AB - We report the preparation of a rovibronic ground-state molecular quantum gas in a single hyperfine state and, in particular, the absolute lowest quantum state. This addresses the last internal degree of freedom remaining after the recent production of a near quantum degenerate gas of molecules in their rovibronic ground state, and provides a crucial step towards full control over molecular quantum gases. We demonstrate a scheme that is general for bialkali polar molecules and allows the preparation of molecules in a single hyperfine state or in an arbitrary coherent superposition of hyperfine states. The scheme relies on electric-dipole, two-photon microwave transitions through rotationally excited states and makes use of electric nuclear quadrupole interactions to transfer molecular population between different hyperfine states.
UR - http://www.scopus.com/inward/record.url?scp=74949083806&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.104.030402
DO - 10.1103/PhysRevLett.104.030402
M3 - Article
AN - SCOPUS:74949083806
VL - 104
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 3
M1 - 030402
ER -