A Quantum Mechanical Maxwellian Demon 2017
... mechanics in which the only kind of probabilistic statements are those derived from the micro-dynamics. His proposal replaces standard quantum mechanics with the dynamics proposed by Ghirardi, Rimini and Weber (1986) (see Bell 1987), which postulates that for any initial quantum state0 of a system ...
... mechanics in which the only kind of probabilistic statements are those derived from the micro-dynamics. His proposal replaces standard quantum mechanics with the dynamics proposed by Ghirardi, Rimini and Weber (1986) (see Bell 1987), which postulates that for any initial quantum state0 of a system ...
Loop quantum gravity - Institute for Gravitation and the Cosmos
... These ideas were brilliant and inspiring, but it was more and fluctuating object. We can, of course, still call it “space”, than two decades before they become concrete. The turnor “quantum space”, as indeed I do in this article. But it is around came suddenly at the end of the 1980s, when a well re ...
... These ideas were brilliant and inspiring, but it was more and fluctuating object. We can, of course, still call it “space”, than two decades before they become concrete. The turnor “quantum space”, as indeed I do in this article. But it is around came suddenly at the end of the 1980s, when a well re ...
Quantum Mechanical Cross Sections
... atomic nucleus. If we perform the integration for f(q) given in eqn (21) using the Coulomb potential we will end up with an indefinite result. In order to obtain a definite result we use a screened potential with a parameter e to evaluate the integral and then let e go to zero. It is plausible in a ...
... atomic nucleus. If we perform the integration for f(q) given in eqn (21) using the Coulomb potential we will end up with an indefinite result. In order to obtain a definite result we use a screened potential with a parameter e to evaluate the integral and then let e go to zero. It is plausible in a ...
On the Derivation of the Time-Dependent Equation of Schrodinger
... Eq. (2) is redundant? However, there is a more serious objection to the solution Eq. (2) and its FeynmanHibbs interpretation. An oscillation frequency is, by definition, positive definite. However, the quantity (E S ) is not absolutely defined and can take on any value, negative or positive, arbi ...
... Eq. (2) is redundant? However, there is a more serious objection to the solution Eq. (2) and its FeynmanHibbs interpretation. An oscillation frequency is, by definition, positive definite. However, the quantity (E S ) is not absolutely defined and can take on any value, negative or positive, arbi ...
The effect of quantum confinement and discrete dopants in
... The assumption of zero VDS is a limitation of our approach and does not allow us to take into account drain-induced barrier lowering. In addition, the definition of VT that we use can give a different value compared to other commonly used definitions [1]. However, we believe that our evaluation of t ...
... The assumption of zero VDS is a limitation of our approach and does not allow us to take into account drain-induced barrier lowering. In addition, the definition of VT that we use can give a different value compared to other commonly used definitions [1]. However, we believe that our evaluation of t ...
... In order to complete the simulation of random quantum computers by classical computers of an infinite number of bits, we need first to simulate the five requirements imposed by DiVincenzo (Nakahara, 2004) on operative quantum computers. These five requirements are the following: a) The quantum degre ...
Luttinger liquids and composite fermions in nanostructures: what is
... where m is the number of quanta of fictitious magnetic flux carried by each composite fermion [25]. The form of this expression differs from the Büttiker–Landauer linear response expression (2), although both have been derived for Fermi liquid systems; the difference between the two forms arises fr ...
... where m is the number of quanta of fictitious magnetic flux carried by each composite fermion [25]. The form of this expression differs from the Büttiker–Landauer linear response expression (2), although both have been derived for Fermi liquid systems; the difference between the two forms arises fr ...
Problems with Light Emitting Devices and Their Solutions
... to prevent electron tunneling. As a result, the energy is transferred not by a tunneled electron but by some sort of optical interactions between the two nanomaterials. A serious problem, however, is that a cavity cannot be defined in a sub-wavelength– sized nanometric space, which differs from the ...
... to prevent electron tunneling. As a result, the energy is transferred not by a tunneled electron but by some sort of optical interactions between the two nanomaterials. A serious problem, however, is that a cavity cannot be defined in a sub-wavelength– sized nanometric space, which differs from the ...
How to test the “quantumness” of a quantum computer?
... The looming impossibility to predict the behaviour of any big enough quantum processor (adiabatic, gate-based, etc) and even to test it for “quantumness” using classical tools, is the elephant in the room, and it may effectively restrict any further progress. Even taking the optimistic view, that qu ...
... The looming impossibility to predict the behaviour of any big enough quantum processor (adiabatic, gate-based, etc) and even to test it for “quantumness” using classical tools, is the elephant in the room, and it may effectively restrict any further progress. Even taking the optimistic view, that qu ...
Incoherent pair background processes with full polarizations at the ILC
... The International Linear Collider will collide polarized particle bunches to produce physics processes of interest and background events. The polarization states of both the bunch particles and the collective field of the bunch are important parameters affecting cross-sections and hence final partic ...
... The International Linear Collider will collide polarized particle bunches to produce physics processes of interest and background events. The polarization states of both the bunch particles and the collective field of the bunch are important parameters affecting cross-sections and hence final partic ...
Accurate Three-Dimensional Simulation of Electron Mobility
... drawback is that the Poisson equation must be solved repeatedly to properly describe the self-consistent fields which consumes over 80% of the total time spent in 3D simulations. The Corrected Coulomb Approach The corrected Coulomb approach [2, 3] is a purely numerical scheme that generates a correc ...
... drawback is that the Poisson equation must be solved repeatedly to properly describe the self-consistent fields which consumes over 80% of the total time spent in 3D simulations. The Corrected Coulomb Approach The corrected Coulomb approach [2, 3] is a purely numerical scheme that generates a correc ...
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... 6. A photon traveling along the x -‐axis scatters from an electron, which is initially at rest in the lab (i.e. Compton scattering). The incoming photon has energy hv . The scattered photon has e ...
... 6. A photon traveling along the x -‐axis scatters from an electron, which is initially at rest in the lab (i.e. Compton scattering). The incoming photon has energy hv . The scattered photon has e ...
Randall-Sundrum graviton spin determination using azimuthal
... probe of a strongly coupled Higgs sector in the absence of a resonance Even when a resonance can be observed, AS is a probe of the nature of strong interactions Need large integrated luminosity, large phase shift and enhancement in longitudinal modes (Best case Form factor) ...
... probe of a strongly coupled Higgs sector in the absence of a resonance Even when a resonance can be observed, AS is a probe of the nature of strong interactions Need large integrated luminosity, large phase shift and enhancement in longitudinal modes (Best case Form factor) ...
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.