Electron temperature variation associated with the auroral energy input
... density estimates. Brace (1998) discussed the theory of the method, the main sources of error, and some approaches that have been used to reduce the errors. In general, the thermal structure of the ionosphere is more complex at high latitudes than at lower latitudes because of additional heating pro ...
... density estimates. Brace (1998) discussed the theory of the method, the main sources of error, and some approaches that have been used to reduce the errors. In general, the thermal structure of the ionosphere is more complex at high latitudes than at lower latitudes because of additional heating pro ...
Multimode quantum memory based on atomic frequency combs
... The collective state can be understood as a coherent excitation of a large number of AFC modes by a single photon. These modes are initially 共at t = 0兲 in phase with respect to the spatial mode k. But the collective state will rapidly dephase into a noncollective state that does not lead to a strong ...
... The collective state can be understood as a coherent excitation of a large number of AFC modes by a single photon. These modes are initially 共at t = 0兲 in phase with respect to the spatial mode k. But the collective state will rapidly dephase into a noncollective state that does not lead to a strong ...
Range corrections in Proton Halo Nuclei
... initio approaches to calculate nuclear scattering observables are limited by the computational complexity of the nuclear many-body problem. Scattering models perform well but use a number of uncontrolled approximations that make the errors of such calculations difficult to quantify. Faced with thes ...
... initio approaches to calculate nuclear scattering observables are limited by the computational complexity of the nuclear many-body problem. Scattering models perform well but use a number of uncontrolled approximations that make the errors of such calculations difficult to quantify. Faced with thes ...
Temperature gradients due to adiabatic plasma
... Another possibility is two electron populations with different temperatures can enforce the current balance [16, 17]. A rather different theory suggests that double layers in these devices are simply sheaths that exist in free space to enforce the currentfree condition [18]. No consensus has yet bee ...
... Another possibility is two electron populations with different temperatures can enforce the current balance [16, 17]. A rather different theory suggests that double layers in these devices are simply sheaths that exist in free space to enforce the currentfree condition [18]. No consensus has yet bee ...
A Real-space Approach - USF Scholarship Repository
... Transport in metallic multilayers corresponds to the picture of an electron propagating throughout the whole structure and experiencing different impurity scattering Therefore the first length rates in different regions. scale is associated with the propagation of an electron through the structure. ...
... Transport in metallic multilayers corresponds to the picture of an electron propagating throughout the whole structure and experiencing different impurity scattering Therefore the first length rates in different regions. scale is associated with the propagation of an electron through the structure. ...
Breakdown of the Standard Model
... in clean systems, and for d>0 in disordered ones. ■ Landau free energy density: f = f0 – h m + t m2 + u m4 + w m6 Equation of state: h = t m + u m3 + w m5 + … ■ Landau theory predicts: ● 2nd order transition at t=0 if u<0 ● 1st order transition if u<0 ...
... in clean systems, and for d>0 in disordered ones. ■ Landau free energy density: f = f0 – h m + t m2 + u m4 + w m6 Equation of state: h = t m + u m3 + w m5 + … ■ Landau theory predicts: ● 2nd order transition at t=0 if u<0 ● 1st order transition if u<0 ...
Multiplets in Transition Metal Ions - cond
... constants C1 and C2 and n the number of holes. For fixed n this is just a constant shift. This theorem shows that the energies of the d8 multiplets are, up to an additive constant, identical to those of the d2 multiplets. Some terms in the Hamiltonian which will be discussed later do not remain inva ...
... constants C1 and C2 and n the number of holes. For fixed n this is just a constant shift. This theorem shows that the energies of the d8 multiplets are, up to an additive constant, identical to those of the d2 multiplets. Some terms in the Hamiltonian which will be discussed later do not remain inva ...
Classical canonical transformation theory as a tool to describe
... current work have already been outlined in a previous publication,27 where we have proposed a new procedure for calculating the hopping probability. In fact, the key problems of multidimensional tunnelling delineated in the previous paragraphs have not been addressed in our previous paper while the ...
... current work have already been outlined in a previous publication,27 where we have proposed a new procedure for calculating the hopping probability. In fact, the key problems of multidimensional tunnelling delineated in the previous paragraphs have not been addressed in our previous paper while the ...
Do Quantum Objects Have Temporal Parts? - Philsci
... This argument serves two aims. The first is to continue the recent tradition of addressing the problem of persistence in the context of specific physical theories: Balashov (2010); Gilmore (2008) consider special relativity; Butterfield (2005, 2006) considers classical mechanics. The second aim is t ...
... This argument serves two aims. The first is to continue the recent tradition of addressing the problem of persistence in the context of specific physical theories: Balashov (2010); Gilmore (2008) consider special relativity; Butterfield (2005, 2006) considers classical mechanics. The second aim is t ...
UNIVERSITY OF CALICUT Scheme and Syllabus for 2010 M.Sc. (Physics) Programme(CSS)
... A project work of 4 credit is compulsory and it should be done in III & IV semesters. Also a comprehensive Viva Voce may be conducted by external examiners at the end of IV Semester and carries 4 credits. ...
... A project work of 4 credit is compulsory and it should be done in III & IV semesters. Also a comprehensive Viva Voce may be conducted by external examiners at the end of IV Semester and carries 4 credits. ...
1 Introduction : Phase transitions in 2D electron systems 2
... Anderson insulator. This have been the basis for most of the theoretical models concerning ...
... Anderson insulator. This have been the basis for most of the theoretical models concerning ...
Chapter 4 Quantum Entanglement
... of quantum theory. By ruling out local hidden variables, Bell demolished Einstein’s dream that the indeterminacy of quantum theory could be eradicated by adopting a more complete, yet still local, description of Nature. If we accept locality as an inviolable principle, then we are forced to accept r ...
... of quantum theory. By ruling out local hidden variables, Bell demolished Einstein’s dream that the indeterminacy of quantum theory could be eradicated by adopting a more complete, yet still local, description of Nature. If we accept locality as an inviolable principle, then we are forced to accept r ...
How to Construct Quantum Random Functions
... In the quantum setting, any quantum algorithm A making even a single quantum query to Oi gets to “see” all the outputs at once, meaning we need exponentially many samples to simulate Oi exactly. However, while we cannot lazily simulate the oracles Oi given q samples from Di , we can approximately si ...
... In the quantum setting, any quantum algorithm A making even a single quantum query to Oi gets to “see” all the outputs at once, meaning we need exponentially many samples to simulate Oi exactly. However, while we cannot lazily simulate the oracles Oi given q samples from Di , we can approximately si ...
Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.