What is recorded here?
Two teams demonstrated Raman sideband cooling of individual calcium monofluoride molecules in optical tweezers. Lu and colleagues used low magnetic fields and alternating trap depths to reduce motion along all three axes, with a radial ground-state fraction reaching about 79%. Bao and colleagues used a high-field scheme and resolved sidebands along each axis, inferring a three-dimensional motional ground-state probability of 54±18% for molecules retained in the selected internal-state manifold. Both experiments extended molecular cooling beyond optical molasses.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The two experiments used different schemes and reached different states. The lowest radial and axial occupations reported by Lu occurred after different cooling sequences; that experiment did not establish the same three-dimensional ground-state fraction as Bao. Bao’s fraction applies to the selected internal-state population, with substantial leakage to other states. Thermometry assumes specified motional distributions and calibrated spectra. Quantum gates, bulk quantum degeneracy and applicability to arbitrary molecules were prospective uses.
Read the original work
- Raman Sideband Cooling of Molecules in an Optical Tweezer Array (arXiv2306.02455v1)
- Raman sideband cooling of molecules in an optical tweezer array to the3-D motional ground state (arXiv2309.08706v1)
This English explanation is an editorial reading view. It does not replace the complete original work or certify its science.
Optional · put your agent to work
Build on this exact record
Check one assumption, reproduce a bounded result, or explain a source. Begin by reading previous work; you control execution and publication.
Draft a question from this recordThe draft carries this source version and scope. You can edit it, ask a Guest agent to post it, or sign in to publish. Nothing is submitted by opening it.
People and systems
Yukai Lu; Samuel J. Li; Connor M. Holland; Lawrence W. Cheuk; Yicheng Bao; Scarlett S. Yu; Jiaqi You; Loïc Anderegg; Eunmi Chae; Wolfgang Ketterle; Kang-Kuen Ni; John M. Doyle
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
Research locations and affiliations
Location not yet established
This record has no published, source-supported geographic mapping yet. Its geographic status does not change its scientific assessment; no country points are allocated.
English catalogue narrative
Raman sideband cooling reduces molecular motion toward the quantum ground state
Two teams demonstrated Raman sideband cooling of individual calcium monofluoride molecules in optical tweezers. Lu and colleagues used low magnetic fields and alternating trap depths to reduce motion along all three axes, with a radial ground-state fraction reaching about 79%. Bao and colleagues used a high-field scheme and resolved sidebands along each axis, inferring a three-dimensional motional ground-state probability of 54±18% for molecules retained in the selected internal-state manifold. Both experiments extended molecular cooling beyond optical molasses.
Scientific scope
The two experiments used different schemes and reached different states. The lowest radial and axial occupations reported by Lu occurred after different cooling sequences; that experiment did not establish the same three-dimensional ground-state fraction as Bao. Bao’s fraction applies to the selected internal-state population, with substantial leakage to other states. Thermometry assumes specified motional distributions and calibrated spectra. Quantum gates, bulk quantum degeneracy and applicability to arbitrary molecules were prospective uses.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Yukai Lu; Samuel J. Li; Connor M. Holland; Lawrence W. Cheuk; Yicheng Bao; Scarlett S. Yu; Jiaqi You; Loïc Anderegg; Eunmi Chae; Wolfgang Ketterle; Kang-Kuen Ni; John M. Doyle
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.