搜索结果: 76-90 共查到“理学 Polarization”相关记录149条 . 查询时间(0.07 秒)
Efficient polarization qubit transmission assisted by frequency degree of freedom
Efficient polarization qubit frequency degree of freedom
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2010/10/18
We present an efficient arbitrary polarization qubit transmission scheme against channel noise
by utilizing frequency degree of freedom, which is more stable in transmission surroundings. The informa...
Polarization entangled state measurement on a chip
Polarization entangled state measurement chip
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2010/10/19
The emerging strategy to overcome the limitations of bulk quantum optics consists of taking ad-
vantage of the robustness and compactness achievable by the integrated waveguide technology. Here we re...
Universal quantum control of two-electron spin quantum bits using dynamic nuclear polarization
Universal quantum control two-electron spin quantum bits dynamic nuclear polarization
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2010/10/27
One fundamental requirement for quantum computation is to perform universal manipulations
of quantum bits at rates much faster than the qubit’s rate of decoherence. Recently,
fast gate operations ha...
Storage of quantum coherences as phase labeled local polarization using magnetic field gradients in NMR
Storage of quantum coherences phase labeled local polarization magnetic field gradients
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2010/10/18
Long decay times were previously observed in samples such as 29Si, C60,Y2O3 by applying multi-
pulse nuclear magnetic resonance sequences to measure decoherence times. They are originated in
stimula...
Remote Preparation of Single-Photon "Hybrid" Entangled and Vector-Polarization States
Remote Preparation Single-Photon "Hybrid" Entangled Vector-Polarization States
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2010/10/21
Quantum teleportation faces increasingly demanding requirements for transmitting large or even
entangled systems. However, knowledge of the state to be transmitted eases its reconstruction,
resultin...
Experimental generation and characterization of single-photon hybrid ququarts based on polarization-orbital angular momentum encoding
Experimental generation characterization single-photon hybrid ququarts polarization-orbital angular momentum encoding
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2010/10/20
High-dimensional quantum states, or qudits, represent a promising resource in the quantum infor-mation field. Here we present the experimental generation of four-dimensional quantum states, or ququart...
100 MHz Amplitude and Polarization Modulated Optical Source for Free-Space Quantum Key Distribution at 850 nm
100 MHz Amplitude Polarization Modulated Optical Source Free-Space Quantum Key Distribution 850 nm
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2010/10/19
We report on an integrated photonic transmitter of up to 100 MHz repetition rate, which emits pulses centered at 850 nm with arbitrary am-plitude and polarization. The source is suitable for free spac...
Application of polarization ellipse technique for analysis of ULF magnetic fields from two distant stations in Koyna-Warna seismoactive region, West India
Application polarization ellipse technique analysis ULF
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2010/10/21
A new approach is developed to find the source azimuth of the ultra low frequency (ULF) electromagnetic (EM) signals believed to be emanating from well defined seismic zone. The method is test applied...
Preliminary evaluation of polarimetric parameters from a new dual-polarization C-band weather radar in an alpine region
Preliminary evaluation of polarimetric parameters new dual-polarization C-band weather radar alpine region
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2010/9/10
The first operational weather radar with dual polarization capabilities was recently installed in Austria. The use of polarimetric radar variables rises several expectations: an increased accuracy of ...
New results on the hadronic vacuum polarization contribution to the muon g－2
muon magnetic moment vacuum polarization electron-positron annihilation tau decays g－2
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2010/5/7
Results on the lowest-order hadronic vacuum polarization contribution to the muon magnetic anomaly are presented. They are based on the latest published experimental data used as input to the dispersi...
Bidirectional Mapping between a Biphoton Polarization State and a Single-Photon Two-Qubit State
Bidirectional Mapping Biphoton Polarization State Single-Photon Two-Qubit State
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2013/7/2
How to manipulate (operate or measure) single photons efficiently and simply is the basic problem in optical quantum information processing. We first present an efficient scheme to transform a biphoto...
Measurement of W-Boson Polarization in Top-quark Decay in ppbar Collisions at sqrt(s) = 1.96 TeV
W-Boson Polarization Top-quark Decay
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2010/3/16
We report measurements of the polarization of W bosons from top-quark decays using 2.7 fb^-1 of ppbar collisions collected by the CDF II detector. Assuming a top-quark mass of 175 GeV/c^2, three measu...
Leading-Order Determination of the Gluon Polarization from high-$p_T$ Hadron Electroproduction
Lepton-Nucleon Scattering Deep Inelastic Scattering QCD gluon polarization
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2010/3/15
Longitudinal double-spin asymmetries of charged hadrons with high transverse momentum $p_T$ have been measured in electroproduction using the \hermes\ detector at \hera. Processes involving gluons in ...
Dual-polarization C-band weather radar algorithms for rain rate estimation and hydrometeor classification in an alpine region
Dual-polarization C-band weather rain rate
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2010/2/3
Dual polarization is becoming the standard for new weather radar systems. In contrast to conventional weather radars, where the reflectivity is measured in one polarization plane only, a dual polariza...
Rainfall estimation and ground clutter rejection with dual polarization weather radar
Rainfall estimation ground clutter rejection
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2010/1/27
Conventional radars, used for atmospheric remote sensing, usually operate at a single polarization and frequency to estimate storm parameters such as rainfallrate and water content.