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Thesis - Archive ouverte UNIGE
... Three theories of gravitation – general relativity, the chameleon and Horava gravity - are confronted with experiment, using standard and adapted post-Newtonian (PN) tools. The laboratory is provided by the Solar System, binary pulsars and future detections at gravitational wave observatories. We te ...
... Three theories of gravitation – general relativity, the chameleon and Horava gravity - are confronted with experiment, using standard and adapted post-Newtonian (PN) tools. The laboratory is provided by the Solar System, binary pulsars and future detections at gravitational wave observatories. We te ...
The Classical and Quantum Mechanics of Systems with Constraints
... A Constraints and the geometry of phase space ...
... A Constraints and the geometry of phase space ...
Nonlinear Phase Dynamics in a Driven Bosonic Josephson Junction
... With adjustable parameters, the BHH can also realize an atom interferometer, in which the bias, E, generates a phase shift that can be measured by atom-number counting. The interaction term allows for the creation of nonclassical input states, but also generates undesired phase-diffusion noise. Atom ...
... With adjustable parameters, the BHH can also realize an atom interferometer, in which the bias, E, generates a phase shift that can be measured by atom-number counting. The interaction term allows for the creation of nonclassical input states, but also generates undesired phase-diffusion noise. Atom ...
Beyond the Standard Model
... description of the strong interactions is by a gauge theory, called quantumchromodynamics, or QCD for short. Quarks and gluons can be arranged as multiplets of the gauge group of QCD, which is SU(3). The associated charges are called color, and there are three quark colors and three anti-quark color ...
... description of the strong interactions is by a gauge theory, called quantumchromodynamics, or QCD for short. Quarks and gluons can be arranged as multiplets of the gauge group of QCD, which is SU(3). The associated charges are called color, and there are three quark colors and three anti-quark color ...
- Quantum Optics and Spectroscopy
... difficulty in building a large quantum computer lies mainly in the fact that the quantum mechanical system cannot be shielded well enough from the environment resulting in erroneous calculations. In quantum physics this is known as decoherence which is responsible for the fact that we do not experie ...
... difficulty in building a large quantum computer lies mainly in the fact that the quantum mechanical system cannot be shielded well enough from the environment resulting in erroneous calculations. In quantum physics this is known as decoherence which is responsible for the fact that we do not experie ...
... we are all a project of some student on some interstellar University who was given a Simulation to run in order to improve the real word. I now dare to say that I sit in the command chair of this simulation and I take part in it being dead for 10 years now. I do not play God, but I learn a lot as my ...
Entanglement or Separability
... »We are thus forced to conclude that the quantum-mechanical description of physical reality given by wave functions is not complete.« - Einstein, Podolski, Rosen [6] On the other hand quantum mechanics was succussfully confirmed by experiments. Therefore the idea of ’hidden variables’ arose, meaning ...
... »We are thus forced to conclude that the quantum-mechanical description of physical reality given by wave functions is not complete.« - Einstein, Podolski, Rosen [6] On the other hand quantum mechanics was succussfully confirmed by experiments. Therefore the idea of ’hidden variables’ arose, meaning ...
Quantum speedup of the Travelling Salesman Problem for bounded
... of these algorithms use an approach known as cut-andcount, which is based on dynamic programming, so a quantum speedup is not known for either algorithm. In the case where we have an upper bound L on the maximum edge cost in the graph, Björklund [15] gave a randomised algorithm which solves the TSP ...
... of these algorithms use an approach known as cut-andcount, which is based on dynamic programming, so a quantum speedup is not known for either algorithm. In the case where we have an upper bound L on the maximum edge cost in the graph, Björklund [15] gave a randomised algorithm which solves the TSP ...
Lectures on Quantum Gravity and Black Holes
... The rules of effective field theory are: 1. Write down the most general possible action consistent with the symmetries; 2. Keep all terms up to some fixed order in derivatives; 3. Coefficients are fixed by dimensional analysis, up to unknown order 1 factors (unless you have a good reason to think ot ...
... The rules of effective field theory are: 1. Write down the most general possible action consistent with the symmetries; 2. Keep all terms up to some fixed order in derivatives; 3. Coefficients are fixed by dimensional analysis, up to unknown order 1 factors (unless you have a good reason to think ot ...
Quiet Readout of Superconducting Flux States
... There is currently a high level of experimental and theoretical activity aimed at the creation of superposed and entangled quantum states in atomic and mesoscopic systems, and in the mechanisms for the decoherence of these superpositions. This interest has been stimulated in part by the possibility ...
... There is currently a high level of experimental and theoretical activity aimed at the creation of superposed and entangled quantum states in atomic and mesoscopic systems, and in the mechanisms for the decoherence of these superpositions. This interest has been stimulated in part by the possibility ...
BPS Geometry, AdS/CFT, and String Theory
... the electroweak symmetry breaking, superparticles, and large extra dimensions, which are relevant to string theory. String theory has a very constrained mathematical structure, so the theory is very unique. The theory unifies quantum mechanics and general relativity very naturally. In the 1980s, it ...
... the electroweak symmetry breaking, superparticles, and large extra dimensions, which are relevant to string theory. String theory has a very constrained mathematical structure, so the theory is very unique. The theory unifies quantum mechanics and general relativity very naturally. In the 1980s, it ...
Quantum nonlocality
... differences. •In classical physics one can try to “individuate” absolutely identical objects by considering their locations in space and time. •This is not possible in quantum physics since in it trajectories are meaningless.This has led some philosophers to claim that quantum particles cannot be co ...
... differences. •In classical physics one can try to “individuate” absolutely identical objects by considering their locations in space and time. •This is not possible in quantum physics since in it trajectories are meaningless.This has led some philosophers to claim that quantum particles cannot be co ...
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... plays a role analogous to that played by the Shannon entropy in classical probability theory. They are both functionals of the state, they are both monotone under a relevant kind of mapping, and they can be singled out uniquely by natural requirements. In section 2.2 we recounted the well known anec ...
... plays a role analogous to that played by the Shannon entropy in classical probability theory. They are both functionals of the state, they are both monotone under a relevant kind of mapping, and they can be singled out uniquely by natural requirements. In section 2.2 we recounted the well known anec ...
Analysis of General Geometric Scaling Perturbations in a Transmitting Waveguide: Fundamental Connection Between Polarization-Mode Dispersion and Group-Velocity Dispersion
... discontinuous high-index contrast variations of the refractive index across a waveguide cross section. We establish that, if at some frequencies a particular mode behaves like pure TE or TM polarized mode (polarization is judged by the relative amounts of the electric and magnetic longitudinal energ ...
... discontinuous high-index contrast variations of the refractive index across a waveguide cross section. We establish that, if at some frequencies a particular mode behaves like pure TE or TM polarized mode (polarization is judged by the relative amounts of the electric and magnetic longitudinal energ ...