Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum degenerate matter. We directly reveal the spin-orbit gap vi...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/73880 https://orcid.org/0000-0001-8120-8548 https://orcid.org/0000-0002-8329-8812 https://orcid.org/0000-0001-9615-3981 |
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| author | Cheuk, Lawrence W. Sommer, Ariel Tjodolv Hadzibabic, Zoran Yefsah, Tarik Zwierlein, Martin Wolfram Bakr, Waseem S |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Cheuk, Lawrence W. Sommer, Ariel Tjodolv Hadzibabic, Zoran Yefsah, Tarik Zwierlein, Martin Wolfram Bakr, Waseem S |
| author_sort | Cheuk, Lawrence W. |
| collection | MIT |
| description | The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum degenerate matter. We directly reveal the spin-orbit gap via spin-injection spectroscopy, which characterizes the energy-momentum dispersion and spin composition of the quantum states. For energies within the spin-orbit gap, the system acts as a spin diode. We also create a spin-orbit coupled lattice and probe its spinful band structure, which features additional spin gaps and a fully gapped spectrum. In the presence of s-wave interactions, such systems should display induced p-wave pairing, topological superfluidity, and Majorana edge states. |
| first_indexed | 2024-09-23T08:18:33Z |
| format | Article |
| id | mit-1721.1/73880 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:18:33Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/738802022-09-30T08:55:16Z Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas Cheuk, Lawrence W. Sommer, Ariel Tjodolv Hadzibabic, Zoran Yefsah, Tarik Zwierlein, Martin Wolfram Bakr, Waseem S Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics MIT-Harvard Center for Ultracold Atoms Cheuk, Lawrence W. Sommer, Ariel Tjodolv Hadzibabic, Zoran Yefsah, Tarik Bakr, Waseem S. Zwierlein, Martin Wolfram The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum degenerate matter. We directly reveal the spin-orbit gap via spin-injection spectroscopy, which characterizes the energy-momentum dispersion and spin composition of the quantum states. For energies within the spin-orbit gap, the system acts as a spin diode. We also create a spin-orbit coupled lattice and probe its spinful band structure, which features additional spin gaps and a fully gapped spectrum. In the presence of s-wave interactions, such systems should display induced p-wave pairing, topological superfluidity, and Majorana edge states. National Science Foundation (U.S.) United States. Defense Advanced Research Projects Agency. Optical Lattice Emulator Program United States. Army Research Office. Multidisciplinary University Research Initiative United States. Air Force Office of Scientific Research. Multidisciplinary University Research Initiative United States. Office of Naval Research. Young Investigator Program United States. Defense Advanced Research Projects Agency. Young Faculty Award United States. Air Force Office of Scientific Research. Presidential Early Career Award for Scientists and Engineers David & Lucile Packard Foundation Engineering and Physical Sciences Research Council (Grant EP/I010580/1) 2012-10-11T16:41:19Z 2012-10-11T16:41:19Z 2012-08 2012-06 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/73880 Cheuk, Lawrence et al. “Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas.” Physical Review Letters 109.9 (2012). © 2012 American Physical Society https://orcid.org/0000-0001-8120-8548 https://orcid.org/0000-0002-8329-8812 https://orcid.org/0000-0001-9615-3981 en_US http://dx.doi.org/10.1103/PhysRevLett.109.095302 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Cheuk, Lawrence W. Sommer, Ariel Tjodolv Hadzibabic, Zoran Yefsah, Tarik Zwierlein, Martin Wolfram Bakr, Waseem S Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas |
| title | Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas |
| title_full | Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas |
| title_fullStr | Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas |
| title_full_unstemmed | Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas |
| title_short | Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas |
| title_sort | spin injection spectroscopy of a spin orbit coupled fermi gas |
| url | http://hdl.handle.net/1721.1/73880 https://orcid.org/0000-0001-8120-8548 https://orcid.org/0000-0002-8329-8812 https://orcid.org/0000-0001-9615-3981 |
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