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The Thomas-Fermi Theory of Atoms, Molecules and
The Thomas-Fermi Theory of Atoms, Molecules and

Coherent Decay of Bose-Einstein Condensates
Coherent Decay of Bose-Einstein Condensates

Black Hole Formation and Classicalization in
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Physics of Projected Wavefunctions
Physics of Projected Wavefunctions

... of HeR by the first two terms in t/U expansion (Eq. (5)). Only when the complete perturbation series is taken into account, is the equivalence exact. 5. Phase Diagram ...
Exact numerical simulations of strongly interacting atoms in 1D trap
Exact numerical simulations of strongly interacting atoms in 1D trap

... challenges in theoretical physics. Despite the fact that the basic interactions are often well known and can be formulated in terms of simple model Hamiltonians, it is very difficult to determine the unitary time evolution of a given initial state or even just the ground and thermal state of the sys ...
Many Body Physics
Many Body Physics

... Condensed matter physics is a remarkable domain where the effects of quantum mechanics combine with the presence of a very large (∼ 1023 ) coupled degrees of freedom. The interplay between these two ingredients leads to the richness of phenomena that we observe in everyday’s materials and which have ...
A Short Course on Topological Insulators
A Short Course on Topological Insulators

New Journal of Physics - Physik Uni
New Journal of Physics - Physik Uni

... However, the existence of a quantum critical point is not a necessary condition to obtain a nonanalytic relation 1E(τ ) [23, 24]. Equation (3), with various values of the exponent η, holds for ramps within gapless phases of several gapless systems [24]. For a continuous bath of harmonic oscillators, ...
Entanglement spectrum of a random partition: Connection with the
Entanglement spectrum of a random partition: Connection with the

Quantum Mechanics
Quantum Mechanics

... the light intensity, individual photons arrive at random and, as each carries with it a quantum of energy, there will be occasions when an electron is emitted well before this would be classically expected. The constant h connecting the energy of a photon with the frequency of the electromagnetic wa ...
On the physical interpretation of torsion
On the physical interpretation of torsion

... Xu, Lees, and Hougen ...
Two-resonator circuit quantum electrodynamics: Dissipative theory
Two-resonator circuit quantum electrodynamics: Dissipative theory

... simple protocol, the “quantumness” of the setup can be exploited by bringing the qubit into a superposition state with the resonators. This allows for generating bipartite and tripartite entanglement or Schrödinger cat states. In a real experiment, one expects the operation of the two-resonator circ ...
here
here

Quantum Physics (UCSD Physics 130)
Quantum Physics (UCSD Physics 130)

Many Body Quantum Mechanics
Many Body Quantum Mechanics

... (A∗ φ, ψ) = (φ, Aψ) for all ψ ∈ D(A). The existence of A∗ φ for φ ∈ D(A∗ ) is ensured by the Riesz representation Theorem (why?). If D(A∗ ) is dense in H then A∗ is an operator on H. 1.12 PROBLEM. Show that the adjoint of a bounded operator is a bounded operator. 1.13 PROBLEM. Show that A is symmetr ...
Far-infrared-driven electron-hole correlations in a quantum dot with an internal... Roger Sakhel, Lars Jo¨nsson, and John W. Wilkins
Far-infrared-driven electron-hole correlations in a quantum dot with an internal... Roger Sakhel, Lars Jo¨nsson, and John W. Wilkins

Adiabatic Quantum State Generation and Statistical Zero Knowledge
Adiabatic Quantum State Generation and Statistical Zero Knowledge

... language is that the task of quantum state generation becomes much more natural, since adiabatic evolution is cast in the language of state generation. Furthermore, as we will see, it seems that this language lends itself more easily than the standard circuit model to developing general tools. In o ...
LHC Theory Lecture 1: Calculation of Scattering Cross Sections
LHC Theory Lecture 1: Calculation of Scattering Cross Sections

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pdf

Quantum Energy Teleportation - UWSpace
Quantum Energy Teleportation - UWSpace

... relation between energy, information and geometry is the 21st century holy grail of physics. The overall focus of this thesis is just that; the interplay between energy and correlations. We approach the topics from multiple different angles. One of the common themes is the coupling of probe systems ...
Lattice QCD
Lattice QCD

... High energy scattering experiments – less sensitive to large x parton distribution/correlation “Lattice factorizable cross sections” – more suited for large x partons  Lattice QCD can calculate PDFs, but, more works are needed! ...
Introduction to Quantum Computing (2010) (e-book)
Introduction to Quantum Computing (2010) (e-book)

Mathematical foundation of quantum annealing
Mathematical foundation of quantum annealing

... obtain an approximate solution within a finite computation time since it needs an infinitely long time to reach the exact solution by keeping the system close to thermal equilibrium. Let us now turn our attention to QA 共see Refs. 6–11兲.1 In SA, we make use of thermal 共classical兲 fluctuations to let ...
Density instabilities in multi-layer dipolar Fermi gases
Density instabilities in multi-layer dipolar Fermi gases

Solvation of electronically excited I2-
Solvation of electronically excited I2-

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Perturbation theory (quantum mechanics)

In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The idea is to start with a simple system for which a mathematical solution is known, and add an additional ""perturbing"" Hamiltonian representing a weak disturbance to the system. If the disturbance is not too large, the various physical quantities associated with the perturbed system (e.g. its energy levels and eigenstates) can be expressed as ""corrections"" to those of the simple system. These corrections, being small compared to the size of the quantities themselves, can be calculated using approximate methods such as asymptotic series. The complicated system can therefore be studied based on knowledge of the simpler one.
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