Statistical Physics (PHY831): Part 4: Superconductors at finite
... Cooper pair. The penetration depth is the depth to which magnetic field penetrates from a normal region into a superconductor. As noted in BCS theory, s-wave superconductors have a singlet spin state that is unfavorable in the presence of a magnetic field, so to maintain the superconducting state, s ...
... Cooper pair. The penetration depth is the depth to which magnetic field penetrates from a normal region into a superconductor. As noted in BCS theory, s-wave superconductors have a singlet spin state that is unfavorable in the presence of a magnetic field, so to maintain the superconducting state, s ...
An Introduction to Quantum Fluid of Light
... To begin, it is important to understand what is a polariton in a semi-conductor. At low temperature, in a semi-conductor, electrons are in the valence band. With an adequate optical excitation, electrons acquire an energy and go to the conduction band, creating this way a hole in the valence band. T ...
... To begin, it is important to understand what is a polariton in a semi-conductor. At low temperature, in a semi-conductor, electrons are in the valence band. With an adequate optical excitation, electrons acquire an energy and go to the conduction band, creating this way a hole in the valence band. T ...
URL - StealthSkater
... I have actually made much more radical proposal in TGD-inspired Quantum-Biology. According to this proposal, flux tube connections are dynamical and can be changed by reconnection of 2 magnetic flux tubes. The signal pathways A→C and B→D would be transformed to signal pathways to A→D and B→C by reco ...
... I have actually made much more radical proposal in TGD-inspired Quantum-Biology. According to this proposal, flux tube connections are dynamical and can be changed by reconnection of 2 magnetic flux tubes. The signal pathways A→C and B→D would be transformed to signal pathways to A→D and B→C by reco ...
No Slide Title
... Research is the process of going up alleys to see if they are blind. Marston Bates ...
... Research is the process of going up alleys to see if they are blind. Marston Bates ...
Spontaneous Emission Spectrum in Double Quantum Dot Devices
... to elastic tunneling and has a Lorentzian line shape Iel(«) 5 Iel,maxv2/(v2 1 «2) (11). The full width at half maximum, 2v, can be tuned by the central gate voltage VGC roughly from 4 to 20 meV. From measurements of Iel(«) at positive and negative VSD, it is possible to extract values for the tunnel ...
... to elastic tunneling and has a Lorentzian line shape Iel(«) 5 Iel,maxv2/(v2 1 «2) (11). The full width at half maximum, 2v, can be tuned by the central gate voltage VGC roughly from 4 to 20 meV. From measurements of Iel(«) at positive and negative VSD, it is possible to extract values for the tunnel ...
A quantum mechanical model of adaptive mutation
... into a statistical ensemble of macroscopically distinguishable (classical) states whenever the system reaches a critical degree of complexity or interacts with a complex environment. Essentially, the numerous interactions between the system and its environment cancel out all of the interference term ...
... into a statistical ensemble of macroscopically distinguishable (classical) states whenever the system reaches a critical degree of complexity or interacts with a complex environment. Essentially, the numerous interactions between the system and its environment cancel out all of the interference term ...
Particle in a box
In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers. The model is mainly used as a hypothetical example to illustrate the differences between classical and quantum systems. In classical systems, for example a ball trapped inside a large box, the particle can move at any speed within the box and it is no more likely to be found at one position than another. However, when the well becomes very narrow (on the scale of a few nanometers), quantum effects become important. The particle may only occupy certain positive energy levels. Likewise, it can never have zero energy, meaning that the particle can never ""sit still"". Additionally, it is more likely to be found at certain positions than at others, depending on its energy level. The particle may never be detected at certain positions, known as spatial nodes.The particle in a box model provides one of the very few problems in quantum mechanics which can be solved analytically, without approximations. This means that the observable properties of the particle (such as its energy and position) are related to the mass of the particle and the width of the well by simple mathematical expressions. Due to its simplicity, the model allows insight into quantum effects without the need for complicated mathematics. It is one of the first quantum mechanics problems taught in undergraduate physics courses, and it is commonly used as an approximation for more complicated quantum systems.