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UChicago scientists see fireworks from atoms at ultra-low temperatures（图）
UChicago scientists fireworks atoms ultra-low temperatures
2017/11/23
Scientists aren’t normally treated to fireworks when they discover something about the universe. But a team of University of Chicago researchers found a show waiting for them at the atomic level—along...
From Low-Distortion Norm Embeddings to Explicit Uncertainty Relations and Efficient Information Locking
uncertainty relations information locking low-distortion norm embedding
2010/11/5
We exploit a connection between uncertainty relations and low-distortion embeddings of L2 into L1, which allows us to adapt an explicit low-distortion embedding to obtain efficient entropic uncertaint...
Stability of low-friction surface sliding of nanocrystals with rectangular symmetry and application to W on NaF(001)
low-friction surface sliding hexagonal lattices rectangular symmetry
2010/4/6
We investigate the stability of low-friction sliding of nanocrystal with rectangular atomic arrangement on rectangular lattices, for which analytical results can be obtained. We find that several inco...
Strong entanglement causes low gate fidelity in inaccurate one-way quantum computation
one-way quantum computation Strong entanglement low gate fidelity
2010/3/10
We study how entanglement among the register qubits affects the gate fidelity in the one-way quantum computation if a measurement is inaccurate. We show that the mean gate fidelity is upper bounded by...
The CMS pixel detector has been designed for a peak luminosity of 10^34cm-2s-1 and a total dose corresponding to 2 years of LHC operation at a radius of 4 cm from the interaction region. Parts of the ...
Low-Energy Parabosonic Membrane: New Critical Dimensions and Deformed Noncommutativity
Membranes q-deformation Noncommutativity
2010/7/8
We study a classical perturbative membrane based on the string-limit model and we discuss the consistency of the theory where the closure of the classical constraints algebra is verified. We paraquant...
In a recent paper [Beige, Knight, and Vitiello, quant-ph/0404160], we showed that a large number N of particles
can be cooled very efficiently. The particles should be excited by red-detuned laser fi...
Experimental Characterization of a Low-Current Cutting Torch
Experimental Characterization a Low-Current Cutting Torch
2010/10/26
An experimental characterization of a low-current (30-40 A) cutting torch is presented. To avoid contamination of the plasma arc by removed anode material, a rotating steel cylinder was used as the an...
Longitudinal Magnetic Field Effect on the Electrical Breakdown in Low Pressure Gases
Longitudinal Magnetic Field Effect the Electrical Breakdown Low Pressure Gases
2010/10/27
The electrical breakdown has been investigated for low-pressure argon and nitrogen discharges under the influence of an external longitudinal magnetic field. Plane-parallel aluminum electrodes (5 cm d...