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January 19, 2015 | Research News

Rice-sized laser, powered one electron at a time, bodes well for quantum computing

Researchers from JQI and Princeton University have built a rice grain-sized microwave laser, or "maser," powered by single electrons that demonstrates the fundamental interactions between light and moving electrons.

January 8, 2015 | Outreach | People News

Topology in Condensed Matter: Tying Quantum Knots

Jay Sau and colleagues will be teaching a new online course on topology in Condensed Matter. The course will start February 2015--visit to sign up! The course is a collaboration of researchers from UMD, TUDelft and QuTech.

December 4, 2014 | Research News

Quantum Re-Coherence

Quantum computers will someday perform calculations impossible for conventional digital computers.  But for that to happen, the core quantum information must be preserved against contamination from the environment.  In other words, decoherence of qubits must be forestalled.  Coherence, the ability of a system to retain quantum integrity---meaning that one part of the system can be used to predict the behavior ...

December 3, 2014 | People News

Philip Merrill Presidential Scholars

JQI Fellows Christopher Monroe and Victor Yakovenko, were recognized as mentors of the high-achieving students Geoffrey Ji and Zachary Siegel (respectively), who were named the 2014-2015 Philip Merrill Presidential Scholars. Ji currently works ion trap quantum information in Monroe's group and Siegel works on ultracold atomic gases with Trey Porto. According the the program's site, "The Merrill Presidential Scholars ...

November 14, 2014 | PFC | Research News

Best Quantum Receiver

Alan Migdall and Elohim Becerra and their colleagues at the Joint Quantum Institute have devised an optical detection scheme with an error rate 25 times lower than the fundamental limit of the best conventional detector. They did this by employing not passive detection of incoming light pulses. Instead the light is split up and measured numerous times.

November 14, 2014 | People News

Three JQI Fellows Win APS Awards

Three Fellows of the Joint Quantum Institute (JQI), a joint research partnership between the University of Maryland (UMD) and the National Institute of Standards and Technology (NIST), have won major awards from the American Physical Society, the nation’s largest professional organization of physicists. The scientists are Ian Spielman and Gretchen Campbell of NIST, and Christopher Monroe of ...

October 23, 2014 | People News

Clark School names Edo Waks as Junior Faculty Research Award recipient

JQI fellow Edo Waks (IREAP, JQI and ECE) was selected as the winner of the Clark School Junior Faculty Research Award. The award recognizes an exceptional young faculty member (at or below the associate professor rank) for exemplary quality and impact of research.

Waks research group focuses on nanophotonics with quantum dots. For more information, visit his group site. ...

boson spin-hall thumb
October 20, 2014 | PFC | Research News

Restoring Order

Every electrical device is enabled by the movement of charge, or current. ‘Spintronics’ taps into a different electronic attribute, an intrinsic quantum property known as spin, and may yield devices that operate on the basis of spin-transport. JQI/CMTC theorists have been developing a model for what happens when spins are trapped in an optical lattice structure with a “double-valley” feature. This new result opens up a novel path for generating what’s known as the spin Hall effect, an important example of spin-transport.

Interfering Waves
October 10, 2014 | PFC | Research News

Getting sharp images from dull detectors

A new extreme for sub-wavelength interference has been achieved by JQI scientists using thermal light and small-photon-number light detection. Achieving this kind of sharp interference pattern could be valuable for performing a variety of high-precision physics and astronomy measurements.

October 8, 2014 | PFC | Research News

A cold-atom ammeter

JQI scientists have added an important technique to the atomtronics arsenal, a method for analyzing a superfluid circuit component called a ‘weak link’. The result, detailed in the online journal Physical Review X, is the first direct measurement of the current-phase relationship of a weak link in a cold atom system.


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Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

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