{{short description|American physicist and professor}} {{Infobox scientist | birth_name = David DeMille | image = | image_size = | caption = | birth_date = | birth_place = | death_date = | death_place = | citizenship = | ethnicity = | fields = Physics (atomic physics) | workplaces = Amherst College (1997–1998)<br/>Yale University (1998–2020)<br/>University of Chicago (2020 – 2025)<br/>Argonne National Laboratory (2020 – )<ref>{{cite web|url=https://www.anl.gov/phy/medium-energy-physics-mep|title=Medium Energy Physics (MEP) Argonne National Laboratory|access-date=2012-11-19}}</ref><br/>Johns Hopkins University (2025 – ) | alma_mater = University of Chicago <small>(B.A.)</small>,<br/>University of California, Berkeley <small>(Ph.D.)</small> | doctoral_advisor = Eugene Commins | known_for = | influences = | influenced = | awards = Francis M. Pipkin Award (2007) <br /> Norman F. Ramsey Prize (2024) }}

'''David P. DeMille''' is an American physicist and Bloomberg Distinguished Professor of atomic/molecular physics and precision measurement at Johns Hopkins University. He holds appointments in the Department of Physics and Astronomy in the Krieger School of Arts and Sciences and in the Research and Exploratory Development Department at the Applied Physics Laboratory.<ref>{{Cite web |last=Published |first=Annika Weder / |date=2025-03-03 |title=Leading experimental physicist David DeMille joins Johns Hopkins |url=https://hub.jhu.edu/2025/03/03/david-demille-physicist-johns-hopkins-bdp/ |access-date=2026-02-26 |website=The Hub |language=en}}</ref> He is best known for his use of polar diatomic molecules to search for symmetry-violating effects within the molecules and as a means for manipulating the external properties of the molecules.<ref>{{cite web|url=http://physics.yale.edu/demille|title=David DeMille|year=2012|work=Yale University Department of Physics|access-date=2012-10-10|archive-url=https://web.archive.org/web/20120807005542/http://physics.yale.edu/demille|archive-date=2012-08-07|url-status=dead}}</ref>

His group was the first to accomplish laser cooling of a diatomic molecule, achieved in 2010 using strontium monofluoride (SrF).<ref>{{Cite journal|title = Laser cooling of a diatomic molecule|journal = Nature|pages = 820–823|volume = 467|issue = 7317|doi = 10.1038/nature09443|first1 = E. S.|last1 = Shuman|first2 = J. F.|last2 = Barry|first3 = D.|last3 = DeMille|pmid=20852614|date=Oct 2010|arxiv = 1103.6004|bibcode = 2010Natur.467..820S|s2cid = 4430586}}</ref><ref>{{Cite web|title = Direct laser cooling of molecules|url = https://www.sciencedaily.com/releases/2010/10/101020195313.htm|website = www.sciencedaily.com|access-date = 2015-11-14}}</ref> He is also known for his precise measurements in the ACME EDM Experiment<ref>{{cite web|url=http://doylegroup.harvard.edu/edm/index.html|title=The ACME EDM Experiment|access-date=2020-11-22}}</ref> which constrain the upper limit of the electron electric dipole moment using a beam of thorium monoxide, conducted in collaboration with the groups of Gerald Gabrielse and John Doyle at Harvard.<ref>{{Cite journal|title = Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron|journal = Science|date = 2014-01-17|issn = 0036-8075|pmid = 24356114|pages = 269–272|volume = 343|issue = 6168|doi = 10.1126/science.1248213|language = en|first1 = The ACME|last1 = Collaboration|first2 = J.|last2 = Baron|first3 = W. C.|last3 = Campbell|first4 = D.|last4 = DeMille|first5 = J. M.|last5 = Doyle|first6 = G.|last6 = Gabrielse|first7 = Y. V.|last7 = Gurevich|first8 = P. W.|last8 = Hess|first9 = N. R.|last9 = Hutzler|arxiv = 1310.7534|bibcode = 2014Sci...343..269B|s2cid = 564518}}</ref> DeMille is currently also leading the CeNTREX collaboration, an experiment to measure the nuclear Schiff moment of the thallium nucleus inside a thallium fluoride molecule.<ref>{{cite web | url=http://news.yale.edu/2016/07/27/yale-leads-research-collaboration-explore-origins-universe | title=Yale leads research collaboration to explore origins of the universe | date=27 July 2016 }}</ref>

He was elected a fellow of the American Physical Society in 2005,<ref>{{cite web|url=http://www.aps.org/programs/honors/prizes/prizerecipient.cfm?first_nm=David&last_nm=DeMille&year=2007|title=2007 Francis M. Pipkin Award Recipient|year=2012|access-date=2012-10-10}}</ref> and was awarded the 2024 Norman F. Ramsey Prize in Atomic, Molecular and Optical Physics, and in Precision Tests of Fundamental Laws and Symmetries of the APS.<ref>{{Cite web |title=Prize Recipient: Olga Kocharovskaya |url=https://www.aps.org/programs/honors/prizes/prizerecipient.cfm?last_nm=Kocharovskaya&first_nm=Olga&year=2023 |access-date=2023-11-01 |website=www.aps.org |language=en}}</ref> In 2024, DeMille was elected to the National Academy of Sciences, one of the highest honors in the scientific field in the United States.<ref>{{cite web |title=Five UChicago faculty elected to National Academy of Sciences in 2024 |url=https://news.uchicago.edu/story/five-uchicago-faculty-elected-national-academy-sciences-2024 |website=UChicago News |publisher=UChicago |access-date=27 February 2025}}</ref>

== Selected bibliography == * D DeMille (2015). [https://physicstoday.scitation.org/doi/10.1063/PT.3.3020 "Diatomic molecules, a window onto fundamental physics"]. Physics Today. 68 (12). * D DeMille (2002). "Quantum computation with trapped polar molecules". Physical Review Letters. 88 (6). * LD Carr, D DeMille, RV Krems, J Ye (2009). "Cold and ultracold molecules: science, technology and applications". New Journal of Physics. 11 (5). * BC Regan, ED Commins, CJ Schmidt, D DeMille (2002). "New limit on the electron electric dipole moment". Physical review letters. 88 (7).

== References == <references />

== External links == * [https://bdp.jhu.edu/bd-professors/david-demille/ DeMille Faculty Profile]

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{{DEFAULTSORT:DeMille, David}} Category:21st-century American physicists Category:Yale University faculty Category:Living people Category:Fellows of the American Physical Society Category:Year of birth missing (living people)

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