The Path Integral Approach to Quantum Mechanics
... These are notes for part of a course on advanced quantum mechanics given to 4th year physics students. The only prerequisites, however, are a basic knowledge of the Schrödinger and Heisenberg pictures of standard quantum mechanics (as well as the willingness to occasionally and momentarily suspend ...
... These are notes for part of a course on advanced quantum mechanics given to 4th year physics students. The only prerequisites, however, are a basic knowledge of the Schrödinger and Heisenberg pictures of standard quantum mechanics (as well as the willingness to occasionally and momentarily suspend ...
Black Hole Singularities in the Framework... Gauge/String Duality by Guido Nicola Innocenzo Festuccia
... from the rest of spacetime by a surface called an event horizon. By its definition it is possible for an observer outside the event horizon not to fall into the singularity indefinitely while observers inside the horizon will hit it in a finite proper time. Cosmic censorship hypothesis have been put ...
... from the rest of spacetime by a surface called an event horizon. By its definition it is possible for an observer outside the event horizon not to fall into the singularity indefinitely while observers inside the horizon will hit it in a finite proper time. Cosmic censorship hypothesis have been put ...
Paper - Quantum Electrodynamics in Graphene
... The charge carriers in graphene thus mimic relativistic particles, which are massless and travel at the speed of light. Thus, they can be rightly called as massless relativistic Dirac fermions. The effective mass of the charge carriers in graphene vanishes at Dirac points and they travel at the effe ...
... The charge carriers in graphene thus mimic relativistic particles, which are massless and travel at the speed of light. Thus, they can be rightly called as massless relativistic Dirac fermions. The effective mass of the charge carriers in graphene vanishes at Dirac points and they travel at the effe ...
Schroedinger`s cat states generated by the environment
... ωk We thus obtain a striking exact result: the bath-induced evolution occurs as if it were driven by both linear and nonlinear terms in Lz . For the well-studied TLS, L2z = σz2 ≡ I, the nonlinear term yields an overall phase and does not affect the dynamics. In contrast, for multi-level (or multipar ...
... ωk We thus obtain a striking exact result: the bath-induced evolution occurs as if it were driven by both linear and nonlinear terms in Lz . For the well-studied TLS, L2z = σz2 ≡ I, the nonlinear term yields an overall phase and does not affect the dynamics. In contrast, for multi-level (or multipar ...
Interference of Bose#Einstein Condensates†
... freely and overlapped. The photographs obtained (e.g., see Figures 2 and 3) show spectacular interference fringes.2,3,6 The ground-state of the BEC in such experiments can be coherent, with each atom being described in the mean-field approximation as being in a superposition of orbitals centered at ...
... freely and overlapped. The photographs obtained (e.g., see Figures 2 and 3) show spectacular interference fringes.2,3,6 The ground-state of the BEC in such experiments can be coherent, with each atom being described in the mean-field approximation as being in a superposition of orbitals centered at ...
Quantum information processing at the cellular level
... I thank the organizers of this workshop Vladko Vedral and Elisabeth Rieper for giving me an opportunity to share with you my view of the potential role of quantum theory in explaining Life. I am biologist, and although I will use some formulae, I am not going to use them for calculations, but mostly ...
... I thank the organizers of this workshop Vladko Vedral and Elisabeth Rieper for giving me an opportunity to share with you my view of the potential role of quantum theory in explaining Life. I am biologist, and although I will use some formulae, I am not going to use them for calculations, but mostly ...
introduction to quantum computing 1.
... • Quantum mechanics is not physics in the usual sense - it is not about matter, or energy or waves, or particles - it is about information, probabilities, probability amplitudes and observables, and how they relate to each other. • Quantum mechanics is what you would inevitably come up with if you w ...
... • Quantum mechanics is not physics in the usual sense - it is not about matter, or energy or waves, or particles - it is about information, probabilities, probability amplitudes and observables, and how they relate to each other. • Quantum mechanics is what you would inevitably come up with if you w ...
pdf
... for ε → 0, where the error term depends on fourth and higher order derivatives of the function a; see Theorem 3.2 later on. Phase space approximations of quantum expectations and Wigner functions play a central role in the analysis of quantum systems, in particular in the semiclassical regime; see [ ...
... for ε → 0, where the error term depends on fourth and higher order derivatives of the function a; see Theorem 3.2 later on. Phase space approximations of quantum expectations and Wigner functions play a central role in the analysis of quantum systems, in particular in the semiclassical regime; see [ ...
Lecture I: Collective Excitations: From Particles to Fields Free Scalar
... We have seen how the elementary excitations of the quantum chain can be presented in terms of new elementary quasi-particles by the ladder operator formalism. Can this approach be generalised to accommodate other many-body systems? The answer is provided by the method of second quantisation — an ess ...
... We have seen how the elementary excitations of the quantum chain can be presented in terms of new elementary quasi-particles by the ladder operator formalism. Can this approach be generalised to accommodate other many-body systems? The answer is provided by the method of second quantisation — an ess ...
Quantum computing with cavity QED
... One proposal to realize this kind of gate using cavity QED was made by Pellizzari et al. [12]. The idea is to use neutral atoms in an optical cavity for the storage of the qubits. The qubits are stored in the Zeeman ground state levels of the trapped atoms. Different laser beams can address them in ...
... One proposal to realize this kind of gate using cavity QED was made by Pellizzari et al. [12]. The idea is to use neutral atoms in an optical cavity for the storage of the qubits. The qubits are stored in the Zeeman ground state levels of the trapped atoms. Different laser beams can address them in ...
The quantum states of muons in fluorides
... Roberto de Renzi (Parma) Pietro Bonfà (Parma) Fabio Bernardini (Cagliari) ...
... Roberto de Renzi (Parma) Pietro Bonfà (Parma) Fabio Bernardini (Cagliari) ...
PDF
... In order to explain our experimental noise figure result for a phase-insensitive amplifier (PIA),9 we have recently published a quantum theory of χ(3) parametric amplifiers that takes into account the non-instantaneous nonlinear response of the medium and the requisite addition of noise caused by this ...
... In order to explain our experimental noise figure result for a phase-insensitive amplifier (PIA),9 we have recently published a quantum theory of χ(3) parametric amplifiers that takes into account the non-instantaneous nonlinear response of the medium and the requisite addition of noise caused by this ...
