搜索结果: 46-60 共查到“物理学 Thermal”相关记录124条 . 查询时间(0.168 秒)
Thermal blinding of gated detectors in quantum cryptography
Thermal blinding gated detectors quantum cryptography
2010/10/19
It has previously been shown that the gated detectors of two commercially available quantum key
distribution (QKD) systems are blindable and controllable by an eavesdropper using continuouswave illum...
Maximally efficient quantum thermal machines: The basic principles
Maximally efficient quantum thermal machines The basic principles
2010/10/19
Following the result by Skrzypczyk et al., arXiv:1009.0865, that certain self-contained quantum
thermal machines can reach Carnot efficiency, we discuss the functioning of self-contained quantum ther...
Tripartite thermal correlations in an inhomogeneous spin-star system
Tripartite thermal correlations inhomogeneous spin-star system
2010/10/20
We exploit the tripartite negativity to study the thermal correlations in a tripartite system, that is the three outer spins interacting with the central one in a spin-star system. We analyze the depe...
Thermal noise engines
Johnson-Nyquist noise fluctuation-dissipation energy-harvesting quantum heat engines
2010/10/27
Electrical heat engines driven by the Johnson-Nyquist noise of resistors are introduced.
They utilize Coulomb's law and the fluctuation-dissipation theorem of statistical physics that is the reverse ...
Possibility of measuring the thermal Casimir interaction between a plate and a cylinder attached to a micromachined oscillator
Possibility thermal Casimir micromachined oscillator
2010/10/21
We investigate the possibility of measuring the thermal Casimir force and its gradient in the
configuration of a plate and a microfabricated cylinder attached to a micromachined oscillator. The Lifsh...
Single Crystal Sapphire at milli-Kelvin Temperatures: Observation of Electromagnetically Induced Thermal Bistability in High Q-factor Whispering Gallery Modes
Single Crystal Sapphire milli-Kelvin Temperatures: Observation of Electromagnetically Induced Thermal Bistability High Q-factor Whispering Gallery Modes
2010/10/21
Resonance modes in single crystal sapphire ( -Al2O3) exhibit extremely high electrical and me-
chanical Q-factors ( 109 at 4K), which are important characteristics for electromechanical ex-periments...
Power and efficiency performances of a micro thermal Brownian heat engine with and without external forces
Brownian heat engine power output efficiency current performance characteristics
2010/6/30
Power and efficiency performances of a thermal Brownian heat engine, which consists of Brownian particles
moving in a periodic sawtooth potential with and without external forces and contacting with ...
Unsteady Free Convection Flow with Thermal Radiation Past a Vertical Porous Plate with Newtonian Heating
Boundary layer Incompressible Optically thin thermally radiating fluid Unsteady free convection flow
2010/4/8
This paper considers exact solutions of unsteady free convection flow with thermal radiation past a vertical porous plate with Newtonian heating. The technique of Laplace transform was employed in der...
Thermal and Epithermal Neutron Fluence Rates in the Irradiation Facilities of the TRIGA IPR-R1 Nuclear Reactor
TRIGA IPR-R1 nuclear reactor neutron fluence rate neutron activation analysis irradiation facilities
2010/6/30
The TRIGA IPR-R1 nuclear reactor at the Centro de Desenvolvimento da Tecnologia Nuclear CDTN/CNEN, Belo Horizonte, Brazil, has three irradiation facilities: a rotary specimen rack outside the reactor ...
Thermal quantum discord in the anisotropic Heisenberg XXZ model with the Dzyaloshinskii-Moriya interaction
quantum discord Dzyaloshinskii-Moriya anisotropic Heisenberg XXZ
2010/3/10
The thermal quantum discord (QD) is studied in a two-qubit Heisenberg XXZ system with Dzyaloshinskii-Moriya (DM) interaction. We compare the thermal QD with thermal entanglement in this system and fin...
Polymer heat transport enhancement in thermal convection: the case of Rayleigh-Taylor turbulence
Polymer heat transport thermal convection
2010/4/1
We study the effects of polymer additives on turbulence generated by the ubiquitous Rayleigh-Taylor instability. Numerical simulations of complete viscoelastic models provide clear evidence that the h...
Stability of Multipole-mode Solitons in Thermal Nonlinear Media
Multipole-mode Solitons Thermal Nonlinear Media
2010/4/1
We study the stability of multipole-mode solitons in one-dimensional thermal nonlinear media. We show how the sample geometry impacts the stability of mutlipole-mode solitons and reveal that the tripo...
Recently it has been suggested that an enhancement in the visibility of ghost images obtained with thermal light can be achieved exploiting higher order correlations 1. This paper reports on the statu...
Nonlocal effects on the thermal behavior of non-crystalline solids
Non-crystalline solids Thermal behavior Nonlocal effects Green function
2010/7/5
We argue that nonlocal effects represented by fractionary terms in the kinetic energy can be relevant to achieve a satisfactory phenomenological description of the thermal behavior of the specific hea...
Non-thermal Hawking radiation from the Kerr black hole
black hole Hawking radiation Damour-Ruffini method quantum theory
2009/8/14
We present a short and direct derivation of Hawking radiation by using the Damour-Ruffini method, as taking into account the self-gravitational interaction from the Kerr black hole. It is found that t...