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Minimal modifications of the primordial power spectrum from an
Minimal modifications of the primordial power spectrum from an

... In this work, we follow Danielsson’s approach but we replace his vacuum condition by the instantaneous adiabatic vacuum at the scale M. The basic underlying physical assumption is that whatever physics determines the dynamics at higher energies, it places the quantum modes into their adiabatic vacuu ...
Quantum kinetic theory for a condensed bosonic gas
Quantum kinetic theory for a condensed bosonic gas

Extended theories of gravity and fundamental physics: Probing the
Extended theories of gravity and fundamental physics: Probing the

... dynamics since it enters algebraically the Lagrangian. However g gains dynamics from the dynamics of the connection Γ. The connection is the Gravitational Field and, as such, it is the fundamental field in the Lagrangian. The metric g enters the Lagrangian with an ancillary role. It reflects the ...
Flat spin connections in the Teleparallel equivalent of General
Flat spin connections in the Teleparallel equivalent of General

Hyperfine Splitting in Non-Relativistic Bound States Marc E. Baker
Hyperfine Splitting in Non-Relativistic Bound States Marc E. Baker

... of the electron over the typical hadronic mass scale all squared. Weak interactions are similarly suppressed by the electron mass over the mass of the W and Z bosons. As a result it provides an ideal system for performing very high precision tests of Quantum Electrodynamics (QED), which is now one o ...
Solving Schrödinger`s Wave Equation
Solving Schrödinger`s Wave Equation

P10_Ferreira
P10_Ferreira

... This isn’t a curiosity of the 2HDM, it’s extremely simple to choose parameters such that the potential has two minima!! Inside the astroid: two minima In red: panic vacua points ...
ppt - Cyclotron Institute
ppt - Cyclotron Institute

...  Random sources evolving on time scales much larger than natural time scales-very similar to spin glasses  Bosons with large occupation # ~  Typical momentum of gluons is ...
5.7. time-reversal symmetry for spin-1/2 and Kramers
5.7. time-reversal symmetry for spin-1/2 and Kramers

HOW TO DEAL WITH THE ARROW OF TIME GIUSEPPE VITIELLO
HOW TO DEAL WITH THE ARROW OF TIME GIUSEPPE VITIELLO

... Dissipative systems have been analyzed in the path integral formalism by Schwinger [6] and by Feynman and Vernon [7] from the point of view of the quantum theory for Brownian motion and are of course a major topic in non-equilibrium statistical mechanics and non-equilibrium Quantum Field Theory (QF ...
Euclidean Field Theory - Department of Mathematical Sciences
Euclidean Field Theory - Department of Mathematical Sciences

... of that relation is a proper definition of the path integral measure. The infinitedimensional integral is only well-defined if we regularise the model somehow, for instance by putting it on a lattice (which, in the quantum-mechanical model, means discretising time). As a result, all the systems that ...
Van der Waals Interaction in QCD
Van der Waals Interaction in QCD

... Strong interaction is a fundamental interaction between quarks and gluons, as well as an interaction between gluons itself. Quarks as spin- 12 particles obey the Dirac-equation.The starting point therefore is the Lagrangian for Dirac-fields L = Ψ̄(iγ µ ∂µ − m)Ψ . ...
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20071031110012301

The Classical Lamb Shift: Why Jackson is Wrong!
The Classical Lamb Shift: Why Jackson is Wrong!

Classical/Quantum Dynamics in a Uniform Gravitational Field: B
Classical/Quantum Dynamics in a Uniform Gravitational Field: B

... where in order to achieve the right impulse (abrupt change of momentum) at each bounce we must set F = 2mg τ .8 The implication is that we can write ...
Quantum Algorithms and Cryptography
Quantum Algorithms and Cryptography

... An amazing achievement: secure communication… • across a planetwide, high-bandwidth network (~3.5 billion users), ...
Semiclassical Correlation in Density
Semiclassical Correlation in Density

Lattice QCD
Lattice QCD

...  Boundary condition is imposed on each field in finite volume: Momentum space is restricted in finite Brillouin zone: Lattice QCD is an Ultra-Violet (UV) finite theory Lattice action is not unique, above action is the simplest one! Many implementations were proposed to reduce the discretization err ...
Document
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... shown. If a quantum-mechanical particle has energy E < U0, it is impossible to find the particle in the region A. x < 0. B. 0 < x < L. C. x > L. D. misleading question — the particle can be found at any x ...
Presentation453.21
Presentation453.21

... Although the wave function is a mathematical concept, it is of fundamental importance and can be directly measured (sort of) For example, X-ray diffraction experiments directly measure (apart from a Fourier transform) the square of the electron distribution of the material The chemical bond can only ...
Comprehending Quantum Theory from Quantum Fields
Comprehending Quantum Theory from Quantum Fields

... reality of the wave function itself. Almost since the inception of the theory, the question as to whether the wave function represents an element of reality or merely gives a subjective knowledge of the system has been in dispute. Early on, the subjective knowledge paradigm dominated among the physi ...
Earth-Moon Lagrangian points as a testbed for general relativity and
Earth-Moon Lagrangian points as a testbed for general relativity and

... points. In particular, in the classical case the vehicle moves on a trajectory about the libration points for at least 700 days before escaping away. We show that this is true also if the modified long-distance Newtonian potential of effective gravity is employed. We also evaluate the impulse requir ...
In the early 1930s, the relativistic electron
In the early 1930s, the relativistic electron

CHAPTER 6: Quantum Mechanics II
CHAPTER 6: Quantum Mechanics II

... Consider a particle passing through a potential well region rather than through a potential barrier. Classically, the particle would speed up passing the well region, because K = mv2 / 2 = E + V0. According to quantum mechanics, reflection and transmission may occur, but the wavelength inside the po ...
Revista Mexicana de Física . Darboux-deformed barriers
Revista Mexicana de Física . Darboux-deformed barriers

... (see also [2, 3]) and found that the involved eigenvalues are complex ² = E − iΓ/2, Γ > 0. Thus, Gamow functions ΨG represent quasi-stationary (resonant) states (E and Γ−1 are the energy and lifetime, respectively). Resonant states u are formally scattering states in the continuum and usually refer ...
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Instanton

An instanton (or pseudoparticle) is a notion appearing in theoretical and mathematical physics. An instanton is a classical solution to equations of motion with a finite, non-zero action, either in quantum mechanics or in quantum field theory. More precisely, it is a solution to the equations of motion of the classical field theory on a Euclidean spacetime.
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