Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State
We report on the creation of an ultracold dipolar gas of fermionic [superscript 23]Na[superscript 40]Kmolecules in their absolute rovibrational and hyperfine ground state. Starting from weakly bound Feshbach molecules, we demonstrate hyperfine resolved two-photon transfer into the singlet X[superscr...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
|
| Online Access: | http://hdl.handle.net/1721.1/97020 https://orcid.org/0000-0003-4329-5163 https://orcid.org/0000-0001-8120-8548 https://orcid.org/0000-0003-2672-5264 |
| _version_ | 1826198650856931328 |
|---|---|
| author | Park, Jee Woo Will, Sebastian Zwierlein, Martin Wolfram |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Park, Jee Woo Will, Sebastian Zwierlein, Martin Wolfram |
| author_sort | Park, Jee Woo |
| collection | MIT |
| description | We report on the creation of an ultracold dipolar gas of fermionic [superscript 23]Na[superscript 40]Kmolecules in their absolute rovibrational and hyperfine ground state. Starting from weakly bound Feshbach molecules, we demonstrate hyperfine resolved two-photon transfer into the singlet X[superscript 1]Σ[superscript +]|v = 0,J = 0⟩ ground state, coherently bridging a binding energy difference of 0.65 eV via stimulated rapid adiabatic passage. The spin-polarized, nearly quantum degenerate molecular gas displays a lifetime longer than 2.5 s, highlighting NaK’s stability against two-body chemical reactions. A homogeneous electric field is applied to induce a dipole moment of up to 0.8 D. With these advances, the exploration of many-body physics with strongly dipolar Fermi gases of [superscript 23]Na[superscript 40]K molecules is within experimental reach. |
| first_indexed | 2024-09-23T11:07:47Z |
| format | Article |
| id | mit-1721.1/97020 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:07:47Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/970202022-10-01T01:26:38Z Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State Park, Jee Woo Will, Sebastian Zwierlein, Martin Wolfram Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics MIT-Harvard Center for Ultracold Atoms Park, Jee Woo Will, Sebastian Zwierlein, Martin Wolfram We report on the creation of an ultracold dipolar gas of fermionic [superscript 23]Na[superscript 40]Kmolecules in their absolute rovibrational and hyperfine ground state. Starting from weakly bound Feshbach molecules, we demonstrate hyperfine resolved two-photon transfer into the singlet X[superscript 1]Σ[superscript +]|v = 0,J = 0⟩ ground state, coherently bridging a binding energy difference of 0.65 eV via stimulated rapid adiabatic passage. The spin-polarized, nearly quantum degenerate molecular gas displays a lifetime longer than 2.5 s, highlighting NaK’s stability against two-body chemical reactions. A homogeneous electric field is applied to induce a dipole moment of up to 0.8 D. With these advances, the exploration of many-body physics with strongly dipolar Fermi gases of [superscript 23]Na[superscript 40]K molecules is within experimental reach. National Science Foundation (U.S.) United States. Air Force Office of Scientific Research. Presidential Early Career Award for Scientists and Engineers United States. Army Research Office United States. Army Research Office. Multidisciplinary University Research Initiative United States. Air Force Office of Scientific Research. Multidisciplinary University Research Initiative David & Lucile Packard Foundation 2015-05-19T13:40:03Z 2015-05-19T13:40:03Z 2015-05 2015-05 2015-05-18T22:00:02Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/97020 Park, Jee Woo, Sebastian A. Will, and Martin W. Zwierlein. "Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State." Phys. Rev. Lett. 114, 205302 (May 2015). © American Physical Society https://orcid.org/0000-0003-4329-5163 https://orcid.org/0000-0001-8120-8548 https://orcid.org/0000-0003-2672-5264 en http://dx.doi.org/10.1103/PhysRevLett.114.205302 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Park, Jee Woo Will, Sebastian Zwierlein, Martin Wolfram Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State |
| title | Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State |
| title_full | Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State |
| title_fullStr | Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State |
| title_full_unstemmed | Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State |
| title_short | Ultracold Dipolar Gas of Fermionic [superscript 23]Na[superscript 40]K Molecules in Their Absolute Ground State |
| title_sort | ultracold dipolar gas of fermionic superscript 23 na superscript 40 k molecules in their absolute ground state |
| url | http://hdl.handle.net/1721.1/97020 https://orcid.org/0000-0003-4329-5163 https://orcid.org/0000-0001-8120-8548 https://orcid.org/0000-0003-2672-5264 |
| work_keys_str_mv | AT parkjeewoo ultracolddipolargasoffermionicsuperscript23nasuperscript40kmoleculesintheirabsolutegroundstate AT willsebastian ultracolddipolargasoffermionicsuperscript23nasuperscript40kmoleculesintheirabsolutegroundstate AT zwierleinmartinwolfram ultracolddipolargasoffermionicsuperscript23nasuperscript40kmoleculesintheirabsolutegroundstate |