Scaling investigation for the dynamics of charged particles in an
... the relative amplitude of motion of the moving wall. For non null control parameter, the structure of the phase space is mixed leading to the observation of periodic islands surrounded by a chaotic sea and invariant KAM curves (also known in the literature as rotational invariant circle or invariant ...
... the relative amplitude of motion of the moving wall. For non null control parameter, the structure of the phase space is mixed leading to the observation of periodic islands surrounded by a chaotic sea and invariant KAM curves (also known in the literature as rotational invariant circle or invariant ...
Negative energy densities in integrable quantum field theories at
... An a priori question is what form the stress-energy tensor T αβ takes in these models. There is a straightforward answer in models derived from a classical Lagrangian, such as the sinh-Gordon model, where a candidate for the operator can be computed [FMS93, KM93, MS94]. However, we also consider the ...
... An a priori question is what form the stress-energy tensor T αβ takes in these models. There is a straightforward answer in models derived from a classical Lagrangian, such as the sinh-Gordon model, where a candidate for the operator can be computed [FMS93, KM93, MS94]. However, we also consider the ...
Quantum Yang-Mills Theory
... down, since the Hilbert space of a quantum field is constructed in terms of particle-like excitations. Conventional particles, such as electrons, are reinterpreted as arising from the quantization of a field. In the process, one finds the prediction of “antimatter”; for every particle, there must be a ...
... down, since the Hilbert space of a quantum field is constructed in terms of particle-like excitations. Conventional particles, such as electrons, are reinterpreted as arising from the quantization of a field. In the process, one finds the prediction of “antimatter”; for every particle, there must be a ...
The Power of Quantum Advice
... exists a 2-local Hamiltonian H=H1+⋯+HL on poly(n,m,1/ε) qubits, such that any ground state |φ of H can be used to simulate ρ (with error ε) on all quantum circuits of size at most m. In other words, there exists an efficient mapping C→C′ such that for all circuits C of size m, ...
... exists a 2-local Hamiltonian H=H1+⋯+HL on poly(n,m,1/ε) qubits, such that any ground state |φ of H can be used to simulate ρ (with error ε) on all quantum circuits of size at most m. In other words, there exists an efficient mapping C→C′ such that for all circuits C of size m, ...
Entropy production and fluctuation relations from full phase space
... • A microscopic measure of irreversibility in stochastic systems exists and when path-averaged equals thermodynamic entropy production (Seifert, Sekimoto etc). • To understand entropy production in general cases we must consider dynamics in full phase space. • Entropy production separates into three ...
... • A microscopic measure of irreversibility in stochastic systems exists and when path-averaged equals thermodynamic entropy production (Seifert, Sekimoto etc). • To understand entropy production in general cases we must consider dynamics in full phase space. • Entropy production separates into three ...
Exact and approximate energy spectrum for the finite square well
... The classic example is the infinite square well, but it is obviously artificial. In the more realistic case where the potential well is finite, the allowed energies as functions of the barrier height can be found by numerically solving a transcendental equation,3 by graphical methods,4–7 or by vario ...
... The classic example is the infinite square well, but it is obviously artificial. In the more realistic case where the potential well is finite, the allowed energies as functions of the barrier height can be found by numerically solving a transcendental equation,3 by graphical methods,4–7 or by vario ...
Computational Power of the Quantum Turing Automata
... classical computation, several such relativized† results have made progress that suggests the direction that future work will eventually go. The first results discovered appeared to suggest that quantum computation was significantly faster than classical computation. Among these was the discovery by ...
... classical computation, several such relativized† results have made progress that suggests the direction that future work will eventually go. The first results discovered appeared to suggest that quantum computation was significantly faster than classical computation. Among these was the discovery by ...
The quantum system - Università degli Studi dell`Insubria
... graph of the trajectory. To do so we need to specify also the angular momentum. In other words, fixing the energy amounts to fixing the magnitude of p but not its direction, but L is left completely unspecified, i. e., the energy and the angular momentum are independent of each other. ...
... graph of the trajectory. To do so we need to specify also the angular momentum. In other words, fixing the energy amounts to fixing the magnitude of p but not its direction, but L is left completely unspecified, i. e., the energy and the angular momentum are independent of each other. ...
Historical pseudo simplified solution of the Dirac
... deductions of the said second-order Dirac-Coulomb equation. In addition, it is worse that some so-called second-order Dirac-Coulomb equations given in those published papers can not be yielded from the original system of the Dirac- equations of first-order in the Coulomb field. They are not any nece ...
... deductions of the said second-order Dirac-Coulomb equation. In addition, it is worse that some so-called second-order Dirac-Coulomb equations given in those published papers can not be yielded from the original system of the Dirac- equations of first-order in the Coulomb field. They are not any nece ...
PH301
... well potential. Let’s make it do a more complicated example: the harmonic oscillator. To do this, choose “Well Parameters” from the “Parameters” menu. Select “User Defined Well,” and define the well as V(x)=150*x^2 (like a spring: V=1/2 kx2) with a domain from -1 to 1. Click OK. Press F3 to begin th ...
... well potential. Let’s make it do a more complicated example: the harmonic oscillator. To do this, choose “Well Parameters” from the “Parameters” menu. Select “User Defined Well,” and define the well as V(x)=150*x^2 (like a spring: V=1/2 kx2) with a domain from -1 to 1. Click OK. Press F3 to begin th ...
The Indivisible Now: why time must be discrete. - Philsci
... To argue for this in a little more detail, firstly consider the essence of time as a sequence of information from the future into the past. The nature of time as a timing mechanism13 is a more mechanical, arbitrary property, and not what I am considering here. Strictly speaking any entangled system ...
... To argue for this in a little more detail, firstly consider the essence of time as a sequence of information from the future into the past. The nature of time as a timing mechanism13 is a more mechanical, arbitrary property, and not what I am considering here. Strictly speaking any entangled system ...
Quantum Picture of the Josephson Junction
... in Fig. 4. The eigenfunctions look similar with eigenfunctions of Harmonic Oscillator Potential. However, one can see that on the right edge of the functions for state 2 and state 3 the functions are no longer zero. In fact, since right barrier of the well is not infinitely high (actually very low i ...
... in Fig. 4. The eigenfunctions look similar with eigenfunctions of Harmonic Oscillator Potential. However, one can see that on the right edge of the functions for state 2 and state 3 the functions are no longer zero. In fact, since right barrier of the well is not infinitely high (actually very low i ...