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March 25, 2015 | Research News

A quantum sensor for nanoscale electron transport

The word “defect” doesn’t usually have a good connotation--often indicating failure. But for physicists, one common defect known as a nitrogen-vacancy center (NV center) has applications in both quantum information processing and ultra-sensitive magnetometry, the measurement of exceedingly faint magnetic fields. In an experiment, recently published in Science, JQI Fellow Vladimir Manucharyan and colleagues at Harvard University used NV centers in diamond to sense the properties of magnetic field noise tens of nanometers away from the silver samples.

March 19, 2015 | PFC | Research News

Sharper Nanoscopy

A new study from Edo Waks' group has shown how to sharpen nanoscale microscopy (nanoscopy) even more by better locating the exact position of the light source. The improvement involves taking into account the phantom dipole induced in the surface of a nanowire by the presence of a nearby quantum dot. The interference of light emitted by the dot with light emitted (in effect) by the phantom distorts the estimation of the dot's true location.

March 19, 2015 | PFC | People News

Paul Julienne awarded William F. Meggers Award

The OSA announced JQI Fellow and NIST scientist Paul Julienne as the 2015 William F. Meggers Award recipient. The William F. Meggers Award recognizes outstanding work in spectroscopy. According to the citation, Julienne is being recognized for "seminal contributions to precision photoassociation and magnetic-Feshbach spectroscopy of ultracold atoms, and the application of these techniques to the formation of cold polar ...

March 3, 2015 | People News

Exploring Quantum Physics IV

“Exploring Quantum Physics" (EQP) a massive open online course (MOOC) on Coursera, begins its fourth edition on March 30, 2015. The link is: https://www.coursera.org/course/eqp. Taught by JQI Fellows Victor Galitski and Charles Clark, the course materials are linked to Galitski's 2013 Oxford University Press book, Exploring Quantum Mechanics . Some 84,000 students have enrolled in the first three editions ...

February 26, 2015 | PFC | Research News

Modular Entanglement Using Atomic Ion Qubits

JQI researchers, under the direction of Christopher Monroe have demonstrated modular entanglement between two atomic systems, separated by one meter. Here, photons are the long distance information carriers entangling multiple qubit modules. Inside of a single module, quantized collective vibrations called phonons connect individual qubits. In the latest result, one module contains ...

February 26, 2015 | PFC | Research News

Novel Phases for Bose Gases

Strongly correlated electronic systems, like superconductors, display remarkable electronic and magnetic properties, and are of considerable research interest. These systems are fermionic, meaning they are composed of a class of particle called a fermion. Bosonic systems, composed another family of particles called bosons, offer a level of control often not possible in solid ...

February 23, 2015 | People News

JQI Fellows Manucharyan and Hafezi awarded prestigious Sloan Research Fellowship

Two JQI Fellows, Mohammad Hafezi and Vladimir Manucharyan, are among the four University of Maryland faculty members that have been awarded 2015 Sloan Research Fellowships. This award, granted by the Alfred P. Sloan Foundation, identifies 126 early-career scientists based on their potential to contribute fundamentally significant research to a wider academic community.

UMD’s 2015 Sloan Research Fellows ...

February 18, 2015 | Research News

Microfluidic Diamond Sensor

Measuring faint magnetic fields is a trillion-dollar business.  Gigabytes of data, stored and quickly retrieved from chips the size of a coin, are at the heart of consumer electronics.   Even higher data densities can be achieved by enhancing magnetic detection sensitivity---perhaps down to nano-tesla levels.

Greater magnetic sensitivity is also useful in many scientific areas, such as the identification of ...

February 9, 2015 | Research News

Michelson-Morley Experiment for Electrons

 A new experiment conducted at the University of California at Berkeley used quantum information techniques for a precision test of a cornerstone principle of physics, namely Lorentz invariance.  This precept holds that the results of a physics experiment do not depend on its absolute spatial orientation.  The work uses quantum-correlated electrons within a pair of calcium ions to look for ...

February 5, 2015 | PFC | People News

Vladimir Manucharyan Receives CAREER Award

JQI Fellow and Assistant Professor of physics Vladimir Manucharyan has received a National Science Foundation CAREER Award. His proposal, entitled “Realizing the ultrastrong coupling regime of quantum electrodynamics using high-impedance Josephson superconducting circuits,” will receive five years of funding. NSF funds research in science and engineering through grants, contracts and cooperative agreements.

For more information on NSF Awards visit: ...

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.

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