188. Strong Electric Field Effect on Weak Localization
... proposed by us for the study of the quantum transport of a system of electrons, phonons and impurities [21, 22]. The study of the influence of an electric field on weak localization has been quite controversial. The theoretical papers of Altshuler et al. [7, 8] predicted that a dc electric field doe ...
... proposed by us for the study of the quantum transport of a system of electrons, phonons and impurities [21, 22]. The study of the influence of an electric field on weak localization has been quite controversial. The theoretical papers of Altshuler et al. [7, 8] predicted that a dc electric field doe ...
Quantum Information Processing with Trapped Neutral Atoms
... neutrals are shallow compared to ion traps, and the atom/trap field interaction invariably perturbs the atomic internal state. In QIP one must balance an intrinsic conflict – qubits must interact with each other and with external control fields that drive the quantum algorithm, while at the same ti ...
... neutrals are shallow compared to ion traps, and the atom/trap field interaction invariably perturbs the atomic internal state. In QIP one must balance an intrinsic conflict – qubits must interact with each other and with external control fields that drive the quantum algorithm, while at the same ti ...
Absorption of intense electromagnetic radiation in collisions of
... An effective collision frequency v ( E ) for electrons and ions, which described the absorption of intense radiation with a frequency which exceeds the Langmuir frequency, is found. The amplitude of the electron oscillation velocity uEin the radiation field is assumed to exceed the electron thermal ...
... An effective collision frequency v ( E ) for electrons and ions, which described the absorption of intense radiation with a frequency which exceeds the Langmuir frequency, is found. The amplitude of the electron oscillation velocity uEin the radiation field is assumed to exceed the electron thermal ...
Momentum - Canyon ISD
... other must be equal in magnitude and opposite in direction. Since the forces are of equal magnitude and they act over the same amount of time, the impulse on each object must also be of equal magnitude. Since each object experiences the same magnitude of impulse, the magnitude of the change in momen ...
... other must be equal in magnitude and opposite in direction. Since the forces are of equal magnitude and they act over the same amount of time, the impulse on each object must also be of equal magnitude. Since each object experiences the same magnitude of impulse, the magnitude of the change in momen ...
- GEOCITIES.ws
... Mr. Moe Mentum • We’ve talked about forces, but how do they affect and relate to motion? • If we remember Newton’s 2nd Law, the net force = time rate change of momentum • momentum () – defined as mass of an object times its velocity • compare the momentum of a baby carriage and bus ...
... Mr. Moe Mentum • We’ve talked about forces, but how do they affect and relate to motion? • If we remember Newton’s 2nd Law, the net force = time rate change of momentum • momentum () – defined as mass of an object times its velocity • compare the momentum of a baby carriage and bus ...
ppt - Pierre-Hugues Beauchemin
... Results and interpretation Comparison to data Constraints on dark matter ...
... Results and interpretation Comparison to data Constraints on dark matter ...
Abstracts
... a self-adjoint submarkovian semigroup S on Rd . We prove that the operator is uniformly subelliptic, the balls corresponding to the intrinsic distance defined by H satisfy the global doubling property and the Poincaré inequality is globally valid. As a result the kernel of the semigroup S has Gauss ...
... a self-adjoint submarkovian semigroup S on Rd . We prove that the operator is uniformly subelliptic, the balls corresponding to the intrinsic distance defined by H satisfy the global doubling property and the Poincaré inequality is globally valid. As a result the kernel of the semigroup S has Gauss ...
In search of symmetry lost
... of particle: gauge bosons, gravitons and Higgs particles, respectively. It is remarkable that everything we know, or reliably infer, about the fundamental laws of nature can be interpreted as a statement about how one or another of these particles interacts with other forms of matter. To be precise, ...
... of particle: gauge bosons, gravitons and Higgs particles, respectively. It is remarkable that everything we know, or reliably infer, about the fundamental laws of nature can be interpreted as a statement about how one or another of these particles interacts with other forms of matter. To be precise, ...
Measurement Theories in Quantum Mechanics Cortland M. Setlow March 3, 2006
... offers a deeper understanding of electromagnetic phenomena, Mermin's correlations may offer some new structure to quantum mechanics, but here I seek only to analyze some aspects of measurement. What, then, is QM trying to tell us? With its Hilbert space structure and associated operators, we can des ...
... offers a deeper understanding of electromagnetic phenomena, Mermin's correlations may offer some new structure to quantum mechanics, but here I seek only to analyze some aspects of measurement. What, then, is QM trying to tell us? With its Hilbert space structure and associated operators, we can des ...
Dynamics of Entanglement for Two-Electron Atoms
... distance between the electrons, corresponding to an atom with Z = 1.2, is larger than the mean distance in an atom with Z = 2 it is reasonable that a stronger potential will diminish this distance and, after expending some time approaching, the electrons will bounce back. The time evolution is not p ...
... distance between the electrons, corresponding to an atom with Z = 1.2, is larger than the mean distance in an atom with Z = 2 it is reasonable that a stronger potential will diminish this distance and, after expending some time approaching, the electrons will bounce back. The time evolution is not p ...
I = m • Δ v - CUSDPhysics
... So, objects in motion are said to have momentum. This momentum is a vector. It has a size and a direction. The size of the momentum is equal to the mass of the object multiplied by the size of the object's velocity. The direction of the momentum is the same as the direction of the object's velocity. ...
... So, objects in motion are said to have momentum. This momentum is a vector. It has a size and a direction. The size of the momentum is equal to the mass of the object multiplied by the size of the object's velocity. The direction of the momentum is the same as the direction of the object's velocity. ...
Further Applications of Newton`s Laws of Motion
... The scale reading is 735 N, which equals the person's weight. This will be the case whenever the elevator has a constant velocitymoving up, moving down, or stationary. The solution to the previous example also applies to an elevator accelerating downward, as mentioned. When an elevator accelerates ...
... The scale reading is 735 N, which equals the person's weight. This will be the case whenever the elevator has a constant velocitymoving up, moving down, or stationary. The solution to the previous example also applies to an elevator accelerating downward, as mentioned. When an elevator accelerates ...
Conservation of Energy Implies Conservation of Momentum
... We can consider an alternative frame of reference associated with a moving body. The measured values of velocities depend on our choice of the frame of reference. From our viewpoint, of people standing on Earth, Earth is immobile, and velocities are measured relative to the Earth. From the viewpoint ...
... We can consider an alternative frame of reference associated with a moving body. The measured values of velocities depend on our choice of the frame of reference. From our viewpoint, of people standing on Earth, Earth is immobile, and velocities are measured relative to the Earth. From the viewpoint ...
Lecture 4. Sturm-Liouville eigenvalue problems
... for arbitrary n ∈ R and A ∈ C. Since the equation is linear with real-coefficients, we may obtain real-valued solutions by taking the real or imaginary parts of any complex-valued solution, and we consider complex-valued solutions for convenience. The solution in (4.8) has modulus |u(x, t)| = |A|e|k ...
... for arbitrary n ∈ R and A ∈ C. Since the equation is linear with real-coefficients, we may obtain real-valued solutions by taking the real or imaginary parts of any complex-valued solution, and we consider complex-valued solutions for convenience. The solution in (4.8) has modulus |u(x, t)| = |A|e|k ...
Evolution without evolution, and without ambiguities
... with a particular clock-variable, so as to ensure that Newton’s laws hold when that observable is regarded as time (the so-called “ephemeris time”). This picture, however, still requires motion to be assumed as primitive, thus leaving the appearance of dynamics itself unexplained. The same problem a ...
... with a particular clock-variable, so as to ensure that Newton’s laws hold when that observable is regarded as time (the so-called “ephemeris time”). This picture, however, still requires motion to be assumed as primitive, thus leaving the appearance of dynamics itself unexplained. The same problem a ...
History of Quantum Mechanics or the Comedy of Errors1 Jean
... Already at the 1927 Solvay Conference, Einstein expressed very clearly this worry. He considered a particle going through a hole, as shown in Fig. 1. In the situation described in the picture, the wave function spreads itself over the half circle, but one always detects the particle at a given point ...
... Already at the 1927 Solvay Conference, Einstein expressed very clearly this worry. He considered a particle going through a hole, as shown in Fig. 1. In the situation described in the picture, the wave function spreads itself over the half circle, but one always detects the particle at a given point ...
Paper
... The control of the coupling phase was experimentally demonstrated. Condensates of 23 Na atoms in the jF 1; mF 1i state were prepared in an optical double-well potential as described in Ref. [14]. The 1=e2 -intensity radius of a focused laser beam for a single well was 7:6 m and the typical t ...
... The control of the coupling phase was experimentally demonstrated. Condensates of 23 Na atoms in the jF 1; mF 1i state were prepared in an optical double-well potential as described in Ref. [14]. The 1=e2 -intensity radius of a focused laser beam for a single well was 7:6 m and the typical t ...
Renormalization group
In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales. In particle physics, it reflects the changes in the underlying force laws (codified in a quantum field theory) as the energy scale at which physical processes occur varies, energy/momentum and resolution distance scales being effectively conjugate under the uncertainty principle (cf. Compton wavelength).A change in scale is called a ""scale transformation"". The renormalization group is intimately related to ""scale invariance"" and ""conformal invariance"", symmetries in which a system appears the same at all scales (so-called self-similarity). (However, note that scale transformations are included in conformal transformations, in general: the latter including additional symmetry generators associated with special conformal transformations.)As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system. In so-called renormalizable theories, the system at one scale will generally be seen to consist of self-similar copies of itself when viewed at a smaller scale, with different parameters describing the components of the system. The components, or fundamental variables, may relate to atoms, elementary particles, atomic spins, etc. The parameters of the theory typically describe the interactions of the components. These may be variable ""couplings"" which measure the strength of various forces, or mass parameters themselves. The components themselves may appear to be composed of more of the self-same components as one goes to shorter distances.For example, in quantum electrodynamics (QED), an electron appears to be composed of electrons, positrons (anti-electrons) and photons, as one views it at higher resolution, at very short distances. The electron at such short distances has a slightly different electric charge than does the ""dressed electron"" seen at large distances, and this change, or ""running,"" in the value of the electric charge is determined by the renormalization group equation.