Abstract
We report on an experimental realization of unidirectional transporting island structures in an otherwise chaotic phase space of the δ-kicked rotor system. Using a Bose-Einstein condensate as a source of ultracold atoms, we employ asymmetric phase modulation in the kicks, with the narrow momentum distribution of the atoms allowing us to address individual island structures. We observe quantum ratchet behavior in this system, with clear directed momentum current in the absence of a directional force, which we characterize and connect to ε-classical theory.
| Original language | English |
|---|---|
| Article number | 063603 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 88 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2013 Dec 3 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Experimental realization of a quantum ratchet through phase modulation. / White, Donald Hylton; Ruddell, S. K.; Hoogerland, M. D.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 88, No. 6, 063603, 03.12.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experimental realization of a quantum ratchet through phase modulation
AU - White, Donald Hylton
AU - Ruddell, S. K.
AU - Hoogerland, M. D.
PY - 2013/12/3
Y1 - 2013/12/3
N2 - We report on an experimental realization of unidirectional transporting island structures in an otherwise chaotic phase space of the δ-kicked rotor system. Using a Bose-Einstein condensate as a source of ultracold atoms, we employ asymmetric phase modulation in the kicks, with the narrow momentum distribution of the atoms allowing us to address individual island structures. We observe quantum ratchet behavior in this system, with clear directed momentum current in the absence of a directional force, which we characterize and connect to ε-classical theory.
AB - We report on an experimental realization of unidirectional transporting island structures in an otherwise chaotic phase space of the δ-kicked rotor system. Using a Bose-Einstein condensate as a source of ultracold atoms, we employ asymmetric phase modulation in the kicks, with the narrow momentum distribution of the atoms allowing us to address individual island structures. We observe quantum ratchet behavior in this system, with clear directed momentum current in the absence of a directional force, which we characterize and connect to ε-classical theory.
UR - http://www.scopus.com/inward/record.url?scp=84890408712&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890408712&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.88.063603
DO - 10.1103/PhysRevA.88.063603
M3 - Article
VL - 88
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 6
M1 - 063603
ER -