Experimental Realization of a Quantum Ratchet Through Phase Modulation
arXiv:1308.6008 · doi:10.1103/PhysRevA.88.063603
Abstract
We report on an experimental realization of unidirectional transporting island structures in an otherwise chaotic phase space of the delta-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.
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Cited by in corpus (21)
- Quantum Walk in Momentum Space with a Bose-Einstein Condensate
- Floquet topological phases in a spin-1/2 double kicked rotor
- Experimental control of transport resonances in a coherent quantum rocking ratchet
- Non-Hermitian Floquet topological phases in the double-kicked rotor
- Experimental realization of a momentum-space quantum walk
- Observation of the Quantum Boomerang Effect
- Ratchet Effect in the Quantum Kicked Rotor and its Destruction by Dynamical Localization
- Hamiltonian ratchets with ultra-cold atoms
- Phase Noise in the Delta Kicked Rotor: From Quantum to Classical
- Initial state dependence of a quantum-resonance ratchet
- Steering random walks with kicked ultracold atoms
- Experimental realization of an ideal Floquet disordered system
- A regular Hamiltonian halting ratchet for matter wave transport
- Quantum search with a continuous-time quantum walk in momentum space
- Quantum Parameter Space of Dissipative Directed Transport
- Applications of fidelity measures to complex quantum systems
- Spontaneous Emission in Quantum Walks of a Kicked Bose-Einstein Condensate
- Quantum Walks of kicked Bose-Einstein condensates
- Dynamics of kicked spin-orbit-coupled Bose-Einstein condensates
- Impact of Boundary Conditions on the Double-Kicked Quantum Rotor
- Chaotic and ballistic dynamics in time-driven quasiperiodic lattices