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In principle, quantum-based devices such as computers and sensors could vastly outperform conventional digital technologies for carrying out many complex tasks. But developing such devices in practice...
New 'refrigerator' super-cools molecules to nano-Kelvin temperatures（图）
New refrigerator super-cools molecules nano-Kelvin temperatures
2020/4/17
For years, scientists have looked for ways to cool molecules to ultracold temperatures, at which point the molecules should slow to a crawl, allowing scientists to precisely control their quantum beha...
JILA’s 3-D Quantum Gas Atomic Clock Offers New Dimensions in Measurement（图）
JILA 3-D Quantum Gas Atomic Clock New Dimensions Measurement
2017/10/25
JILA physicists have created an entirely new design for an atomic clock, in which strontium atoms are packed into a tiny three-dimensional (3-D) cube at 1,000 times the density of previous one-dimensi...
JILA strontium atomic clock sets new records in both precision and stability（图）
strontium atomic clock lasers
2014/3/18
Heralding a new age of terrific timekeeping, a research group at JILA—a joint institute of the University of Colorado Boulder and the National Institute of Standards and Technology—has unveiled an exp...
A new limit on Lorentz-violating tensor interactions set using $^{21}$Ne-Rb-K comagnetometer
Lorentz-violating 21Ne-Rb-K comagnetometer
2011/8/29
We develop a comagnetometer using 21Ne atoms with nuclear spin I = 3=2 and Rb atoms polarized by spin-exchange with K atoms to search for tensor interactions that violate local Lorentz invariance.We f...
New soliton generating transformations in the bosonic sector of heterotic string effective theory
heterotic string gravity bosonic dynamics symmetries integrability solitons
2010/12/21
In the author’s paper Ref. 1, the integrable structure of the symmetry reduced bosonic
dynamics in the low energy heterotic string effective theory was presented.
A Moving Magnetic Trap Decelerator: a New Source for Cold Atoms and Molecules
Moving Magnetic Trap Decelerator Source Cold Atoms Molecules
2010/11/12
We present a new source of cold paramagnetic atoms and molecules. The paramagnetic particles are cooled during the adiabatic expansion and become entrained in an intense, cold but fast supersonic bea...
Many-Body Entanglement: a New Application of the Full Counting Statistics
Many-Body Entanglement Application Counting Statistics
2010/4/13
Entanglement entropy is a measure of quantum correlations between separate parts of a many-body system, which plays an important role in many areas of physics. Here we review recent work in which a re...
February 15, 2007，Physicists at the National Institute of Standards and Technology (NIST) have taken the first ever two-dimensional pictures of a “frequency comb,” providing extra information that enh...