搜索结果: 1-15 共查到“物理学 a boost”相关记录16条 . 查询时间(0.14 秒)
A certain amount of noise is inherent in any quantum system. For instance, when researchers want to read information from a quantum computer, which harnesses quantum mechanical phenomena to solve cert...
System's ability to boost laser precision at room temperature increases its usability（图）
boost laser precision room temperature increases usability
2020/7/17
Physicists at the Massachusetts Institute of Technology have designed a quantum "light squeezer" that reduces quantum noise in an incoming laser beam by 15%. It is the first system of its ki...
'Lossless' metamaterial could boost efficiency of lasers and other light-based devices
Lossless metamaterial lasers other light-based devices
2017/3/14
Engineers at the University of California San Diego have developed a material that could reduce signal losses in photonic devices. The advance has the potential to boost the efficiency of various ligh...
JILA’s Superradiant Laser May One Day Boost Atomic Clocks and ‘Rulers’ for Space
JILA Superradiant Laser Atomic Clocks Rulers Space
2016/11/4
JILA physicists have demonstrated a novel laser design based on synchronized emissions of light from the same type of atoms used in advanced atomic clocks. The laser could be stable enough to improve ...
Heavy fermions get nuclear boost on way to superconductivity
Heavy fermions nuclear boost superconductivity
2016/2/22
In a surprising find, physicists from the United States, Germany and China have discovered that nuclear effects help bring about superconductivity in ytterbium dirhodium disilicide (YRS), one of the m...
Turning loss to gain: Cutting power could dramatically boost laser output（图）
laser Cutting power
2014/12/1
Lasers — devices that deliver beams of highly organized light — are so deeply integrated into modern technology that their basic operations would seem well understood. CD players, medical diagnostics ...
Turning loss to gain: Cutting power could dramatically boost laser output
Cutting power dramatically boost laser output
2014/10/30
Lasers — devices that deliver beams of highly organized light — are so deeply integrated into modern technology that their basic operations would seem well understood. CD players, medical diagnostics ...
基于多环控制的Buck-Boost型LED驱动系统设计
LED照明 Buck-Boost 多环控制 小信号模型 功率因数
2014/1/9
在OCC（One Cycle Control）控制Buck-Boost型LED照明驱动的基础上提出一种多环控制策略，设计了Buck-Boost型高效LED照明驱动系统.重点阐述多环控制策略原理，建立系统模型，并分析了控制系统相关性能.系统仿真表明，新型多环控制系统具有功率因数高、输出阻抗低、动态性能好等性能，达到了预期目标.
平均电流控制的Boost PFC变换器可能工作于电感电流在半个工频周期内全连续、部分断续和全断续的模式, 且不同工作模式下, 变换器的传导EMI频谱存在差异。为了分析变换器的最恶劣传导EMI频谱并简化EMI滤波器的设计, 首先给出变换器不同工作模式的输入电压和负载条件, 并给出开关管漏源极电压的波形。通过分析开关管漏源极电压的各次谐波幅值特性指出, 传导EMI开关频率基波的最恶劣情况出现在电感电流...
Viscous Hydrodynamic Evolution with Non-Boost Invariant Flow for the Color Glass Condensate
Viscous Hydrodynamic Color Glass Condensate
2011/7/20
The Large Hadron Collider (LHC) experiments have revealed that the predictions of the color glass condensate (CGC) tend to underestimate the multiplicity at mid-rapidity.
Boost modes for a massive fermion field
boost symmetry fermion field Wightman function zero mode
2011/9/29
Abstract: We have shown that Wightman function of a free quantum field generates any complete set of solutions of relativistic wave equations. Using this approach we have constructed the complete set ...
Non-boost-invariant anisotropic dynamics
Non-Boost-Invariant Dynamics Anisotropic Plasma Non-equilibrium
2011/1/6
We study the non-boost-invariant evolution of a quark-gluon plasma subject to large earlytime
momentum-space anisotropies. Rather than using the canonical hydrodynamical expansion of the distribution...
Physicists in the US have shown that organic semiconductors may be just as promising as their inorganic counterparts in solar cells. The researchers’ discovery – that bound electron–hole pairs can tra...
Fractals boost superconductivity（图）
Fractals superconductivity a superconducting copper oxide X-ray microscopy
2010/9/21
Fractal patterns are ubiquitous in nature from the shape of a galaxy to the structure of a snowflake. They may also lie behind the mysterious phenomenon of high-temperature superconductivity, accordin...
Spin-squeezed atoms boost interferometry（图）
Spin-squeezed atoms interferometry atomic clocks
2010/4/15
Physicists in Germany are the first to use "spin-squeezed" atoms to boost the precision of an interferometer based on interacting atoms. Their work involves entangling several hundred atoms in a way t...