Protocol to engineer Fulde-Ferrell-Larkin-Ovchinnikov states in a cold Fermi gas
| cam.issuedOnline | 2017-08-14 | |
| dc.contributor.author | Dutta, Shovan | |
| dc.contributor.author | Mueller, Erich J | |
| dc.contributor.orcid | Dutta, Shovan [0000-0002-3534-6920] | |
| dc.date.accessioned | 2019-11-23T00:31:29Z | |
| dc.date.available | 2019-11-23T00:31:29Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | We propose a two-step experimental protocol to directly engineer Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states in a cold two-component Fermi gas loaded into a quasi-one-dimensional trap. First, one uses phase imprinting to create a train of domain walls in a superfluid with equal number of $\uparrow$- and $\downarrow$-spins. Second, one applies a radio-frequency sweep to selectively break Cooper pairs near the domain walls and transfer the $\uparrow$-spins to a third spin state which does not interact with the $\uparrow$- and $\downarrow$-spins. The resulting FFLO state has exactly one unpaired $\downarrow$-spin in each domain wall and is stable for all values of domain-wall separation and interaction strength. We show that the protocol can be implemented with high fidelity at sufficiently strong interactions for a wide range of parameters available in present-day experimental conditions. | |
| dc.description.sponsorship | National Science Foundation Grant No. PHY-1508300 | |
| dc.identifier.doi | 10.17863/CAM.46255 | |
| dc.identifier.eissn | 2469-9934 | |
| dc.identifier.issn | 2469-9926 | |
| dc.identifier.uri | https://www.repository.cam.ac.uk/handle/1810/299190 | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society (APS) | |
| dc.publisher.url | http://dx.doi.org/10.1103/PhysRevA.96.023612 | |
| dc.rights | Publisher's own licence | |
| dc.subject | cond-mat.quant-gas | |
| dc.subject | cond-mat.quant-gas | |
| dc.subject | cond-mat.supr-con | |
| dc.title | Protocol to engineer Fulde-Ferrell-Larkin-Ovchinnikov states in a cold Fermi gas | |
| dc.type | Article | |
| dcterms.dateAccepted | 2017-07-20 | |
| prism.issueIdentifier | 2 | |
| prism.number | ARTN 023612 | |
| prism.publicationDate | 2017 | |
| prism.publicationName | PHYSICAL REVIEW A | |
| prism.volume | 96 | |
| rioxxterms.licenseref.startdate | 2017-08-14 | |
| rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
| rioxxterms.type | Journal Article/Review | |
| rioxxterms.version | VoR | |
| rioxxterms.versionofrecord | 10.1103/PhysRevA.96.023612 |
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