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超强静磁场照射对小鼠抗氧化和免疫能力的影响
超强静磁场 抗氧化 免疫
2013/12/4
研究超强静磁场(USMF)连续照射对小鼠抗氧化和免疫能力的影响.采用12 T的超强静磁场每天照射小鼠2 h，连续7 d，测量小鼠肝脏和肾脏中丙二醛（MDA）的含量和过氧化氢酶（CAT）、超氧化物歧化酶（SOD）、总抗氧化能力（T-AOC）和谷胱甘肽过氧化物酶（GSH-Px）的活力；测定胸腺、脾脏指数和脾脏中淋巴细胞转化率；检测外周血中白细胞数目.结果表明：超强静磁场可以显著增强肝脏中SOD和 ...
Alq3 有机发光二极管中的正负磁电导转变
有机发光二极管 磁电导转变 单极电流 双极化子
2013/8/27
制备了基于Alq3 的有机发光二极管, 器件结构为ITO/CuPc/NPB/Alq3/LiF/Al, 并在不同温度下测量了器件在恒压偏置下传导电流的磁电导效应. 当Alq3 发光层的厚度为15 nm 时, 在器件的传导电流从双极电流过渡到单极电流的过程中, 器件的磁电导发生了明显的正负转变; 而当Alq3 发光层的厚度为65 nm 时, 在传导电流从双极电流到单极电流的过渡过程中, 器件的磁电导呈...
Holographic fermions in external magnetic fields
Holographic fermions external magnetic fields
2010/12/23
We study the Fermi level structure of 2+1-dimensional strongly interacting electron systems in external magnetic field using the AdS/CFT correspondence. The gravity dual of a finite density fermion s...
Proof of universality of electrical conductivity at finite chemical potential
electrical conductivity finite chemical potential
2010/12/23
It was proposed in arXiv:1008.2944 that, for certain gauge theories with gravity duals, electrical conductivity at finite chemical potential is universal. Here we provide a general proof that, when m...
Theory of interacting topological superfluids and superconductors
Theory of interacting topological superfluids superconductors
2010/12/24
We investigate the three-dimensional, time-reversal invariant topological superconductors with generic interaction by their response to external fields. The first description is a gravitational topolo...
We derive the Noether currents and charges associated with an internal galilean invariance---a symmetry recently postulated in the context of so-called galileon theories. Along the way we clarify the...
Holographic conductors near the Breitenlohner-Freedman bound
Holographic conductors Breitenlohner-Freedman bound
2010/12/23
We discuss holographic superconductors in an arbitrary dimension whose dual black holes have scalar hair of mass near the Breitenlohner-Freedman bound. We concentrate on low temperatures in the probe ...
BFKL approach and six-particle MHV amplitude in N=4 super Yang-Mills
BFKL approach six-particle MHV amplitude N=4 super
2010/12/23
We consider the planar MHV amplitude in N=4 supersymmetric Yang-Mills theory for 2 -> 4 particle scattering at two and three loops in the Regge kinematics. We perform an analytic continuation of two-...
Coulomb Field Scattering in Born-Infeld Electrodynamics
Coulomb Field Born-Infeld Electrodynamics
2010/12/24
In the context of Born-Infeld electrodynamics, the electromagnetic fields interact with each other via their non-linear couplings. A calculation will be performed where an incoming electromagnetic pl...
Topological BF field theory description of topological insulators
Topological BF field theory description topological insulators
2010/12/27
Topological phases of matter are described universally by topological field theories in the same way that symmetry-breaking phases of matter are described by Landau-Ginzburg field theories. We propos...
Three Roads to Probe-Brane Superconductivity
Probe-Brane Superconductivity High Energy Physics
2010/12/24
We study a defect system of two parallel D5 probe branes in a large-N_c D3 background. Using the non-abelian DBI action, we study three different fields that can give rise to a superconducting phase t...
Electromagnetic corrections to light hadron masses
Electromagnetic corrections hadron masses
2011/1/7
At the precision reached in current lattice QCD calculations, electromagnetic effects are becoming numerically relevant. We will present preliminary results for electromagnetic corrections to light ha...
Geodesics of electrically and magnetically charged test particles in the Reissner-Nordström space-time: analytical solutions
Geodesics of electrically magnetically charged test particles
2010/12/20
We present the full set of analytical solutions of the geodesic equations of charged test particles in the Reissner-Nordstr¨om space-time in terms of the Weierstraß }, and elliptic functions...
Giant Magnetoelectric Effect in Antiferromagnetic BaMnO3-δand Its Derivatives
Giant Magnetoelectric Effect Antiferromagnetic BaMnO3-δ Derivatives
2010/11/19
Hexagonal perovskite 15R-BaMnO2.99 with a ratio of cubic to hexagonal layers of 1/5 in the unit cell is an antiferromagnetic insulator that orders at a Néel temperature TN = 220 K. Here we report stru...
Laser control of complete vibrational transfer in Na$_2$ using resonance coalescence
Laser resonance coalescence
2010/11/17
With a specific choice of laser parameters resulting into a so-called exceptional point in the wavelength-intensity plane, it is possible to produce the coalescence of two Floquet resonances describi...