Welcome to

Ultracold Atoms and Molecules Research

at the University of Washington


Our recent work on a two-element mixture of Bose and Fermi superfluids is published in Physical Review Letters and highlighted as an Editor's suggestion article.






BEC interferometer project reaches a milestone! Phase stability and quadratic scaling with momentum demonstrated with > 50 photon recoils



Through the orchestrated use of lasers, electronics, and ultra-high vacuum technology it is possible to cool atomic gases to temperatures very near Absolute Zero (nanoKelvins) where their behavior is completely dominated by quantum mechanics. Here matter waves can interfere like laser beams and can flow without friction. Precise manipulations of these ultracold atoms with lasers and magnetic fields allow fundamental studies in quantum physics, insights into more complex systems known in condensed matter physics and nuclear physics, and applications in quantum information science. Our group is interested in the physics of quantum mixtures of different atomic species, production and study of dipolar molecular gases formed from ultracold atoms, and precision interferometry with Bose-Einstein condensates. Check the research page for details of our work.

There are often openings for motivated students, post-docs and visitors to join our research efforts. Please direct inquiries to Deep Gupta

electronics box purple crystal
 

Recent News

May 17
Congrats to Alaina for winning the UW Physics Karrer prize!

Ricky defends his thesis, successfully! Congrats Dr. Roy! Next stop JPL.

Mar 17
BEC interferometer project reaches a milestone! Phase stability and quadratic scaling with momentum demonstrated with > 50 photon recoils

Feb 17
Our two-element Bose-Fermi superfluid paper is published in PRL and highlighted as an Editor's suggestion article!

Jan 17
Ryan Bowler accepts position as research scientist at EOSpace.

Aug 16
Jun Hui See Toh joins the group as a new graduate student. Welcome!

Jul 16
Submitted paper on Two-element mixture of Bose and Fermi superfluids

Ben and Ricky present posters, Deep gives talk at ICAP in Seoul

Jun 16
Arron Potter from Coe College joins the group as a summer REU student. Welcome Arron!

Ryan attends and gives talk at CLEO conference in San Jose, CA

Submitted paper on Photoassociative production of YbLi* molecules

Active Stabilization of diode laser injection lock is published in RSI

Brendan heads on to graduate school in physics at U Chicago. Best wishes!

May 16
Congrats to Ben for winning the UW Physics Dehmelt prize!

Ricky and Ben give talks, group presents 2 posters at Damop conference in Providence, RI

Apr 16
Rapid cooling to degeneracy paper is published in PRA

BEC acceleration to 200 recoil momenta achieved in interferometer machine

Mar 16
Khang Ton joins the group as an undergraduate researcher. Welcome Khang!

Jan 16
Submitted paper on rapid cooling to degeneracy in dynamically shaped traps

Submitted paper on active stabilization of diode laser injection lock

Nov 15
Ricky and Deep attend MURI meeting at Harvard U and present poster and talk.

Sep 15
Charlie Fieseler returns as a graduate student. Welcome back Charlie!

Yb BECs achieved on our second apparatus! Congrats to Ben, Katie, Dan and Brendan!

Jul 15
Paper on dual-axis vapor cell is published in RSI.

May 15
Congrats to Ricky for winning the UW Physics Dehmelt award and to Alan for winning the UW Physics Henderson (thesis) award! Deep receives a department mentoring award.

Apr 15
Paper on magnetic-field dependent interactions in Li-Yb(3P2) accepted in NJP Focus Issue on New Frontiers in Cold Molecules Research

Alaina receives honorable mention on NSF graduate fellowship competition.

Feb 15
Post-doc Ryan Bowler joins the Li-Yb team. Welcome!

Will successfully defends his thesis on Feb 25. Congrats Will!

Jan 15
Our Yb BEC interferometry apparatus is alive - Ben produces our first Yb MOT in our second apparatus.

Dec 14
Chao is awarded a Mary Gates Fellowship. Congrats!

Submitted paper on magnetic-field dependent interactions in Li-Yb(3P2)

Nov 14
Ricky and Deep attend MURI meeting at UCLA and present poster and talk.

Yb BEC contrast interferometer paper is accepted in PRA.

Sep 14
Alan starts post-doc position with Ketterle group at MIT.

Aug 14
Ben, Ricky, and Deep attend ICAP in Washington DC. Ben and Ricky present posters.

July 14
Alan successfully defends his thesis on July 18. Congrats Dr. Jamison!

Dan Gochnauer returns as a graduate student. Welcome back Dan!

June 14
Will and Alan give talks, group presents 2 posters at Damop conference in Madison, WI.

Stephen DiIorio from Union College joins the group as a summer REU student. Welcome!

May 14
Brendan and Chao are both inducted into Sigma Pi Sigma National Honor Society! Congrats guys! Way to go!

April 14
Submitted paper on Yb BEC contrast interferometer.

Alaina gets honorable mention on NSF graduate fellowship competition.

Dec 13
Paper on mixture of metastable Yb and Li is accepted in PRL.

Nov 13
Alex successfully defends his PhD thesis on Nov 26. Congrats Alex!

Brendan is awarded a UW Mary Gates Fellowship. Congrats!

Sep 13
Submitted paper on mixture of metastable Yb and Li.

Anders starts as Optical Engineer at Tomra Systems, Norway. Congrats!

Aug 13
Anders successfully defends his PhD thesis on Aug 21. Congrats Anders!

Graduate student Alaina Green joins the group. Welcome!

July 13
Graduate student Katie McAlpine joins the group. Welcome!

June 13
Dan Gochnauer from Millersville University joins the group as a summer REU student. Welcome!

May 13
Alan wins the UW Physics Dehmelt Award. Congrats!

Post-doc Raj Shrestha joins the group. Welcome!

Jan 13
Paper on Li-Yb production with controllable inter-species overlap appears in PRA.

Nov 12
Submitted paper on Li-Yb production with controllable inter-species overlap.

Oct 12
Will, Ricky, and Deep attend the ARO-MURI kickoff meeting in MIT (Cambridge, MA).

Sep 12
Brendan Saxberg joins the group. Welcome!

Aug 12
Alan, Anders, and Alex present posters at the ICAP conference in France.

Dynamics of Feshbach molecules paper accepted in PRA.

We are awarded an Army MURI Grant (in collaboration with Yale, MIT, JILA, Harvard U, Stanford U, Temple U, U of Nevada (Las Vegas))

July 12
Dynamics of Feshbach molecules paper submitted

June 12
Ricky Roy joins the group. Welcome!

Will and Alan give talks, the group presents two posters at the DAMOP conference in Anaheim, CA

May 12
Alex receives the UW Physics Miller Award. Congrats!

Ben S presents a poster at the UW undergrad research symposium

Ben S awarded a NASA-SURP fellowship for summer research. Congrats!

March 12
We are awarded a grant from the Air Force Office of Scientific Research

News Archives

group_June15

Some recent group research news:

BECIFM scale up
N^2 scaling of Contrast Interferometer
Double Superfluid
Two-Element Bose-Fermi Superfluid Mix
YbLi molecules
YbLi* molecules by photoassociation
Rapid BEC
Rapid BEC by dynamical painting
LiYb* Feshbach Resonance
LiYb* magnetic Feshbach resonance
Contrast IFM
Precision Yb BEC Interferometry
metastable
Metastable and ground state mixtures
prep paper
Li-Yb Mixtures with overlap control
dubdeg
Dynamics of Feshbach molecules
Sisycool
Laser-driven Sisyphus cooling
dubdeg
Li-Yb Double degeneracy
BEC IFM paper
Interaction effects in a BEC interferometer
Sympathetic cooling paper
Li-Yb sympathetic cooling

Click here for all group news and here for old group pictures.


We gratefully acknowledge financial support of our research work from the following: