期刊
PHYSICAL REVIEW LETTERS
卷 115, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.203002
关键词
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资金
- AMOS program, Chemical Sciences, Geosciences, and Bioscienses Division, Basic Energy Sciences, Office of Science, U.S. Department of Energy
- ISF [601/10]
- DFG [LE 2138/2-1]
- Minerva Foundation
- Patricia Elman Bildner Professorial Chair
We report the observation of rotational Bloch oscillations in a gas of nitrogen molecules kicked by a periodic train of femtosecond laser pulses. A controllable detuning from the quantum resonance creates an effective accelerating potential in angular momentum space, inducing Bloch-like oscillations of the rotational excitation. These oscillations are measured via the temporal modulation of the refractive index of the gas. Our results introduce room-temperature laser-kicked molecules as a new laboratory for studies of localization phenomena in quantum transport.
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