ITAMP News

October 1, 2020
Special Seminar October 1, 2020

Thursday,October 1, 2020
1:00 pm
A Zoom Talk

Prof. Dan Stamper-Kurn
UC Berkeley

Title:
Transport in ultracold atomic materials:
a study of flat bands and a window into full-counting statistics

Abstract:
Ultracold atomic gases allow us to study many-body systems, with strong analogies to condensed-matter physics, within new settings and with great flexibility and precision. I will discuss two experiments on quantum gases that relate to current transport in solid-state materials. In the first, we examine effects of geometric frustration on bulk transport and measure the group velocity of a quantum gas placed within the nominally flat band of a kagome lattice. We observe a dramatic renormalization of band structure caused by atomic interactions. In the second experiment, we use an optical cavity to conduct precise and real-time measurements of a gas as it undergoes the non-equilibrium process of evaporative cooling. We examine the two-time correlation in the atom number to identify regimes of sub- and super-linear evolution. This experiment touches on the subject of full counting statistics and its previous study in the realm of mesoscopic electronics.

August 24, 2020
Work done at ITAMP and CUA pave the way to increasing the lifetimes of ultracold trapped molecules

You may access the article through the link below:

https://physics.aps.org/articles/v13/s100

August 17, 2020
ITAMP Fellow Nicole Yunger Halpern and colleagues publish quantum-metrology paper in Nature Communications

Researchers including ITAMP Fellow Nicole Yunger Halpern recently proved that quantum physics can enhance metrology, if a simple extra measurement is performed during an experiment. The proof technique hinges on mathematical objects that resemble probabilities but that can assume negative values when describing quantum systems. The result was published in Nature Communications and featured in a news article by the University of Cambridge:

https://www.cam.ac.uk/research/news/quantum-negativity-can-power-ultra-p...

August 10, 2020
A new memoir of Alex Dalgarno on the fifth anniversary of his death, by two of his former students
June 19, 2020
Summer fellowships for students and faculty from under-represented academic institutions

ITAMP has a funded program of summer fellowships for students and faculty from under-represented academic institutions. We will double our effort in the coming year to recruit more students and faculty advisors from HBCU and other minority-serving colleges.

https://www.cfa.harvard.edu/itamp-ufsfellowship

May 1, 2020
Quantum Steampunk

ITAMP Fellow Nicole Yunger Halpern published a feature about her research in Scientific American this May. Yunger Halpern and colleagues re-envision 19th-century thermodynamics with 21st-century information theory. They use the combination as a new lens through which to view atomic, molecular, and optical physics; chemistry; condensed matter; high-energy physics; and biophysics. Yunger Halpern has dubbed this research program "quantum steampunk," after the steampunk movement that blends Victorian settings with futuristic technologies in art, film, and literature. The article has gained press in Popular Mechanics, Nature, the Fortune "Data Sheet" (April 22, 2020), and Wikipedia.

April 10, 2020
Rivka Bekenstein and colleagues new research on quantum metasurfaces appears in Nature Physics

Rivka Bekenstein and colleagues new research on quantum metasurfaces appears in Nature Physics: https://www.nature.com/articles/s41567-020-0845-5

January 7, 2020
In a collaboration, former ITAMP fellow (Richard Schmidt), Hossein Sadeghpour and Eugene Demler have proposed how to simulate many-body central spin problem with Rydberg molecules:
December 23, 2019
Holiday Greetings and Best New Year Wishes from all of us at ITAMP.

See You Next Year!

December 17, 2019
Phosphorus-calcium-oxygen clusters in the brain might contain 'quantum bits' for information processing, , suggesting a novel contribution to cognition.

Phosphorus-calcium-oxygen clusters in the brain might contain 'quantum bits' for information processing, suggesting a novel contribution to cognition. Read about this new work by Nicole here:
https://www.journals.elsevier.com/annals-of-physics/highlighted-article/...

November 5, 2019
Physics Today article on Paola Cappellaro's group PRL on localization of NMR spin chain, using a crystal bought on eBay
October 30, 2019
Misha Lukin on Google's announcement of Quantum Supremacy

Pages