Journal ArticleDOI
Four-terminal phase-coherent conductance.
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TLDR
A conductance formula for a sample of arbitrary shape with four terminals is derived to describe transport in the limit where carriers can traverse the sample without suffering phase-destroying events.Abstract:
A conductance formula for a sample of arbitrary shape with four terminals is derived to describe transport in the limit where carriers can traverse the sample without suffering phase-destroying events. The Onsager-Casimir symmetry relations are deduced. Experiments measure an off-diagonal Onsager coefficient and the magnetoconductance of such a sample is asymmetric even in the presence of an Aharonov-Bohm flux only. Symmetry relations between conductance measurements which exchange the role of current and voltage leads are predicted.read more
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Topological insulators and superconductors
Xiao-Liang Qi,Shou-Cheng Zhang +1 more
TL;DR: Topological superconductors are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors and are characterized by a full insulating gap in the bulk and gapless edge or surface states which are protected by time reversal symmetry.
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Random-matrix theories in quantum physics : common concepts
TL;DR: A review of the development of random-matrix theory (RMT) during the last fifteen years is given in this paper, with a brief historical survey of the developments of RMT and of localization theory since their inception.
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Random Matrix Theories in Quantum Physics: Common Concepts
TL;DR: It is suggested that the current development of random-matrix theory signals the emergence of a new “statistical mechanics”: Stochasticity and general symmetry requirements lead to universal laws not based on dynamical principles.
Journal ArticleDOI
Spatial variation of currents and fields due to localized scatterers in metallic conduction
TL;DR: In this article, the electric field is associated only with space charge but not with a current, and approximate space charge neutrality is restored, by adding a particular solution of the transport equation in which the electric fields are associated with a specific dipole field about each scatterer.
Journal ArticleDOI
Reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells
TL;DR: In this article, the spectral and angular dependences of the electroluminescence of solar cells and light emitting diodes were analyzed and a rigorous proof for a reciprocity theorem was given.