News

Tue May 21, 2019

Martin Zwierlein receives Vannevar Bush Faculty Fellowship

Professor of physics will use U.S. Department of Defense fellowship to study the quantum world in search of new states of matter.

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Thu May 9, 2019

Near Unitary Squeezing

A group at the MIT led by Prof. Vladan Vuletić has recently generated significant amount of spin squeezing-a type of quantum entanglement-in an ultracold vapor of ytterbium-171. Spin squeezed states (SSS) can be used to overcome the standard quantum limit (SQL) which bounds state-of-the-art atomic sensors like optical clocks. The latter deploy a dilute vapor...
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Thu May 2, 2019

String patterns in the doped Hubbard model

Understanding strongly correlated quantum many-body states is one of the most thought-provoking challenges in modern research. For example, the Hubbard model, describing strongly correlated electrons in solids, still contains fundamental open questions on its phase diagram. In this work we realize the Hubbard Hamiltonian and search for specific patterns within many individual images of realizations...
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Mon April 22, 2019

Direct Laser Cooling Rubidium Atoms

A group at MIT led by Vladan Vuletic has recently created a Bose-Einstein Condensate (BEC) of rubidium atoms with a new method, direct laser cooling. Many researchers have attempted this elusive goal in the past, but due to various complications resorted to reaching BEC through evaporation instead. Compared to cooling through evaporation, laser cooling is...
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Fri April 19, 2019

Probing entanglement in a many-body-localized system

An interacting quantum system that is subject to disorder may cease to thermalize due to localization of its constituents, thereby marking the breakdown of thermodynamics. The key to our understanding of this phenomenon lies in the system’s entanglement, which is experimentally challenging to measure. We realize such a many-body-localized system in a disordered Bose-Hubbard chain...
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Wed March 13, 2019

Quantum sensing method measures minuscule magnetic fields

MIT researchers find a new way to make nanoscale measurements of fields, including information about their direction.

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Tue March 5, 2019

High school physics class visit Ni group

The Ni group’s “building a single molecule from a reservoir of two atoms” paper was a cover story of Science magazine in May 2018. It generated a lot of public fascinations and subsequent news stories.  A high school teacher from Japan contacted Professor Ni to arrange a lab tour and a short lecture to his...
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Tue January 29, 2019

Spin Transport in a Mott Insulator of Ultracold Fermions

Superconductivity is a phenomenon in materials whereby electron pairs can flow freely without resistance. As a consequence, no energy is lost while electrical current passes through the superconductor. The benefits, therefore, of superconducting materials which operate at room temperature are countless, and range from revolutionizing the electrical power transmission industry, to providing sweeping improvements in...
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Wed October 24, 2018

Kang-Kuen Ni Wins 2019 I.I. Rabi Prize in AMO Physics

To recognize and encourage outstanding research in Atomic, Molecular and Optical Physics by investigators who have held a Ph.D. for no more than 10 years prior to the nomination deadline. The prize consists of $10,000 and a certificate citing the contributions made by the recipient.

Visit the Ni group webpage.

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