Real-time evolution for weak interaction quenches in quantum systems
... the same holds for any time average. Hence quantum systems are never ergodic in a classical sense. This limitation does not apply for the expectation value of a particular observable. Nonetheless, the equilibration of expectation values in an integrable system is restricted for a different reason: A ...
... the same holds for any time average. Hence quantum systems are never ergodic in a classical sense. This limitation does not apply for the expectation value of a particular observable. Nonetheless, the equilibration of expectation values in an integrable system is restricted for a different reason: A ...
Inorganic nanostructures
... in the corresponding bulk material in the other two directions. Today these effects are widely used in semiconductor lasers where the band structure of quantum wells are tailored to give the desired emission wavelengths. The classic example of a semiconductor quantum well is the GaAs – AlxGa(1-x)As ...
... in the corresponding bulk material in the other two directions. Today these effects are widely used in semiconductor lasers where the band structure of quantum wells are tailored to give the desired emission wavelengths. The classic example of a semiconductor quantum well is the GaAs – AlxGa(1-x)As ...
Newton’s first law
... which classical mechanics can be used to describe motion of the electron. Moving electrons in stable states (orbits) do not radiate. It radiates when an electron making a transition between the orbits. The orbital angular momenta of the electrons are quantized. ...
... which classical mechanics can be used to describe motion of the electron. Moving electrons in stable states (orbits) do not radiate. It radiates when an electron making a transition between the orbits. The orbital angular momenta of the electrons are quantized. ...
STATISTICAL FIELD THEORY
... vanish. The first term in the right-hand side is the sum of the one-particle hamiltonians, which includes an effective Zeeman interaction that accounts for a possible difference in the hyperfine energies. The second term represents the interactions. For simplicity, we have assumed that the interaction V ...
... vanish. The first term in the right-hand side is the sum of the one-particle hamiltonians, which includes an effective Zeeman interaction that accounts for a possible difference in the hyperfine energies. The second term represents the interactions. For simplicity, we have assumed that the interaction V ...
... when x = L requires that k x L n π where n = 1, 2, 3, … The boundary condition that that is zero for all values of x when y = b requires that k y b q π where q = 1, 2, 3, … By plugging the results for the components of the wave number into our energy equations, we obtain the energy eigenvalues ...
Atoms – How Small, and How Large!
... above are also found elsewhere in physics. Readers might recall the speed distribution of atoms/molecules in a gas as given by the Maxwell–Boltzmann (or classical) statistics, where one defines most probable speed vp , average speed denoted by v and the rms speed vrms at a certain temperature. Howe ...
... above are also found elsewhere in physics. Readers might recall the speed distribution of atoms/molecules in a gas as given by the Maxwell–Boltzmann (or classical) statistics, where one defines most probable speed vp , average speed denoted by v and the rms speed vrms at a certain temperature. Howe ...
Quantum and Classical Evolution of Chemical Reaction Wave Front
... To resolve the high-frequency motions, Dt must be very small (10-12 s). Typical time scale of reactive events 10 – 10 or higher. Reactive events are generally prohibitive in MD simulation. Molecular dynamics is not a good candidate for reaction path simulation. ...
... To resolve the high-frequency motions, Dt must be very small (10-12 s). Typical time scale of reactive events 10 – 10 or higher. Reactive events are generally prohibitive in MD simulation. Molecular dynamics is not a good candidate for reaction path simulation. ...
m2_CEC
... but, the loss in kinetic energy is equal to the gain in potential energy. When the ball falls, it gains kinetic energy and losses potential energy, but, the gain in kinetic energy is equal to the loss in potential energy. For the motion of the ball going up then down, the kinetic and potential energ ...
... but, the loss in kinetic energy is equal to the gain in potential energy. When the ball falls, it gains kinetic energy and losses potential energy, but, the gain in kinetic energy is equal to the loss in potential energy. For the motion of the ball going up then down, the kinetic and potential energ ...
Brief history of the atom
... collector. The beam transferred its charge to the collector and warmed it. He knew collector's mass, its specific heat and the heat gain. Basing on it he could evaluated thermal energy. He measured the temperature of the collector using the light thermosteam fastened to the collector. He measured th ...
... collector. The beam transferred its charge to the collector and warmed it. He knew collector's mass, its specific heat and the heat gain. Basing on it he could evaluated thermal energy. He measured the temperature of the collector using the light thermosteam fastened to the collector. He measured th ...
The Concept of the Inert Mass in Macroscopic Physics and - if
... to an (infinite) sum of dynamically coupled many-body contributions. This argument does not rest on the question of a static or an expanding (or contracting) universe: even within a formally static universe any dynamical equation reflects a truely nonstatic underlying physics. In continuing this arg ...
... to an (infinite) sum of dynamically coupled many-body contributions. This argument does not rest on the question of a static or an expanding (or contracting) universe: even within a formally static universe any dynamical equation reflects a truely nonstatic underlying physics. In continuing this arg ...
The macroscopic Maxwell equations
... and time. Any such field can therefore be added to the fields. It has to be emphasized that the concept of fields was introduced to explain the transmission of forces from a source to a receiver. The physical observables are therefore forces, whereas the fields are definitions introduced to eliminat ...
... and time. Any such field can therefore be added to the fields. It has to be emphasized that the concept of fields was introduced to explain the transmission of forces from a source to a receiver. The physical observables are therefore forces, whereas the fields are definitions introduced to eliminat ...
ABSTRACT ADIABATIC QUANTUM COMPUTATION: NOISE IN THE ADIABATIC THEOREM AND USING THE JORDAN-WIGNER
... tion where a problem is encoded as the ground state of some Hamiltonian HP , and then a physical system is evolved slowly from a simple Hamiltonian H0 to HP . It is assumed that it is feasible to prepare this system in the ground state of H0 . Under the right conditions and if the evolution is done ...
... tion where a problem is encoded as the ground state of some Hamiltonian HP , and then a physical system is evolved slowly from a simple Hamiltonian H0 to HP . It is assumed that it is feasible to prepare this system in the ground state of H0 . Under the right conditions and if the evolution is done ...
journey in being: new world-cosmology - Home page-
... The ‘original’ mechanism of generation is variations (required by indeterminism) from an initial state and selection i.e. relative duration of Existence i.e. relative stability of those variations that are self-adapted i.e. near symmetric. That is the mechanism is that of variations and selection of ...
... The ‘original’ mechanism of generation is variations (required by indeterminism) from an initial state and selection i.e. relative duration of Existence i.e. relative stability of those variations that are self-adapted i.e. near symmetric. That is the mechanism is that of variations and selection of ...
Phase-controlled localization and directed
... both have also been adopted to produce the exact solutions for a phase controllable lattice system [26] or for an analytically solvable two-level system [27, 45]. The adjustments of driving parameters can be performed in a nonadiabatic [23, 37] or adiabatic manner [46, 47]. On the other hand, the di ...
... both have also been adopted to produce the exact solutions for a phase controllable lattice system [26] or for an analytically solvable two-level system [27, 45]. The adjustments of driving parameters can be performed in a nonadiabatic [23, 37] or adiabatic manner [46, 47]. On the other hand, the di ...