Superfluid qubit systems with ring shaped optical lattices
We study an experimentally feasible qubit system employing neutral atomic currents. Our system is based on bosonic cold atoms trapped in ring-shaped optical lattice potentials. The lattice makes the system strictly one dimensional and it provides the infrastructure to realize a tunable ring-ring int...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/104023 http://hdl.handle.net/10220/19408 |
| _version_ | 1826124033967521792 |
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| author | Auksztol, Filip Crepaz, Herbert Amico, Luigi Aghamalyan, Davit Dumke, Rainer Kwek, Leong Chuan |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Auksztol, Filip Crepaz, Herbert Amico, Luigi Aghamalyan, Davit Dumke, Rainer Kwek, Leong Chuan |
| author_sort | Auksztol, Filip |
| collection | NTU |
| description | We study an experimentally feasible qubit system employing neutral atomic currents. Our system is based on bosonic cold atoms trapped in ring-shaped optical lattice potentials. The lattice makes the system strictly one dimensional and it provides the infrastructure to realize a tunable ring-ring interaction. Our implementation combines the low decoherence rates of neutral cold atoms systems, overcoming single site addressing, with the robustness of topologically protected solid state Josephson flux qubits. Characteristic fluctuations in the magnetic fields affecting Josephson junction based flux qubits are expected to be minimized employing neutral atoms as flux carriers. By breaking the Galilean invariance we demonstrate how atomic currents through the lattice provide an implementation of a qubit. This is realized either by artificially creating a phase slip in a single ring, or by tunnel coupling of two homogeneous ring lattices. The single qubit infrastructure is experimentally investigated with tailored optical potentials. Indeed, we have experimentally realized scaled ring-lattice potentials that could host, in principle, n ~ 10 of such ring-qubits, arranged in a stack configuration, along the laser beam propagation axis. An experimentally viable scheme of the two-ring-qubit is discussed, as well. Based on our analysis, we provide protocols to initialize, address, and read-out the qubit. |
| first_indexed | 2024-10-01T06:14:04Z |
| format | Journal Article |
| id | ntu-10356/104023 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:14:04Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1040232023-02-28T19:21:43Z Superfluid qubit systems with ring shaped optical lattices Auksztol, Filip Crepaz, Herbert Amico, Luigi Aghamalyan, Davit Dumke, Rainer Kwek, Leong Chuan School of Physical and Mathematical Sciences Institute of Advanced Studies DRNTU::Science::Physics::Atomic physics We study an experimentally feasible qubit system employing neutral atomic currents. Our system is based on bosonic cold atoms trapped in ring-shaped optical lattice potentials. The lattice makes the system strictly one dimensional and it provides the infrastructure to realize a tunable ring-ring interaction. Our implementation combines the low decoherence rates of neutral cold atoms systems, overcoming single site addressing, with the robustness of topologically protected solid state Josephson flux qubits. Characteristic fluctuations in the magnetic fields affecting Josephson junction based flux qubits are expected to be minimized employing neutral atoms as flux carriers. By breaking the Galilean invariance we demonstrate how atomic currents through the lattice provide an implementation of a qubit. This is realized either by artificially creating a phase slip in a single ring, or by tunnel coupling of two homogeneous ring lattices. The single qubit infrastructure is experimentally investigated with tailored optical potentials. Indeed, we have experimentally realized scaled ring-lattice potentials that could host, in principle, n ~ 10 of such ring-qubits, arranged in a stack configuration, along the laser beam propagation axis. An experimentally viable scheme of the two-ring-qubit is discussed, as well. Based on our analysis, we provide protocols to initialize, address, and read-out the qubit. Published version 2014-05-20T07:13:28Z 2019-12-06T21:24:48Z 2014-05-20T07:13:28Z 2019-12-06T21:24:48Z 2014 2014 Journal Article Amico, L., Aghamalyan, D., Auksztol, F., Crepaz, H., Dumke, R., & Kwek, L. C. (2014). Superfluid qubit systems with ring shaped optical lattices. Scientific Reports, 4, 4298-. 2045-2322 https://hdl.handle.net/10356/104023 http://hdl.handle.net/10220/19408 10.1038/srep04298 24599096 en Scientific reports This work is licensed under a Creative Commons Attribution 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0 application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics Auksztol, Filip Crepaz, Herbert Amico, Luigi Aghamalyan, Davit Dumke, Rainer Kwek, Leong Chuan Superfluid qubit systems with ring shaped optical lattices |
| title | Superfluid qubit systems with ring shaped optical lattices |
| title_full | Superfluid qubit systems with ring shaped optical lattices |
| title_fullStr | Superfluid qubit systems with ring shaped optical lattices |
| title_full_unstemmed | Superfluid qubit systems with ring shaped optical lattices |
| title_short | Superfluid qubit systems with ring shaped optical lattices |
| title_sort | superfluid qubit systems with ring shaped optical lattices |
| topic | DRNTU::Science::Physics::Atomic physics |
| url | https://hdl.handle.net/10356/104023 http://hdl.handle.net/10220/19408 |
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