dorsal/arxiv
View SchemaQuantum state engineering of spin-orbit coupled ultracold atoms in a Morse potential
| Authors | Yue Ban, Xi Chen, J. G. Muga, E. Ya Sherman |
|---|---|
| Categories | |
| ArXiv ID | 2601.06996vv1 |
| URL | https://arxiv.org/abs/2601.06996 |
| DOI | 10.1103/PhysRevA.91.023604 |
| Journal | Physical Review A 91, 023604 (2015) |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
Achieving full control of a Bose-Einstein condensate can have valuable applications in metrology, quantum information processing, and quantum condensed matter physics. We propose protocols to simultaneously control the internal (related to its pseudospin-1/2) and motional (position-related) states of a spin-orbit-coupled Bose-Einstein condensate confined in a Morse potential. In the presence of synthetic spin-orbit coupling, the state transition of a noninteracting condensate can be implemented by Raman coupling and detuning terms designed by invariant-based inverse engineering. The state transfer may also be driven by tuning the direction of the spin-orbit-coupling field and modulating the magnitude of the effective synthetic magnetic field. The results can be generalized for interacting condensates by changing the time-dependent detuning to compensate for the interaction. We find that a two-level algorithm for the inverse engineering remains numerically accurate even if the entire set of possible states is considered. The proposed approach is robust against the laser-field noise and systematic device-dependent errors.
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"abstract": "Achieving full control of a Bose-Einstein condensate can have valuable applications in metrology, quantum information processing, and quantum condensed matter physics. We propose protocols to simultaneously control the internal (related to its pseudospin-1/2) and motional (position-related) states of a spin-orbit-coupled Bose-Einstein condensate confined in a Morse potential. In the presence of synthetic spin-orbit coupling, the state transition of a noninteracting condensate can be implemented by Raman coupling and detuning terms designed by invariant-based inverse engineering. The state transfer may also be driven by tuning the direction of the spin-orbit-coupling field and modulating the magnitude of the effective synthetic magnetic field. The results can be generalized for interacting condensates by changing the time-dependent detuning to compensate for the interaction. We find that a two-level algorithm for the inverse engineering remains numerically accurate even if the entire set of possible states is considered. The proposed approach is robust against the laser-field noise and systematic device-dependent errors.",
"arxiv_id": "2601.06996",
"authors": [
"Yue Ban",
"Xi Chen",
"J. G. Muga",
"E. Ya Sherman"
],
"categories": [
"quant-ph",
"cond-mat.quant-gas"
],
"doi": "10.1103/PhysRevA.91.023604",
"journal_ref": "Physical Review A 91, 023604 (2015)",
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Quantum state engineering of spin-orbit coupled ultracold atoms in a Morse potential",
"url": "https://arxiv.org/abs/2601.06996",
"version": "v1"
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