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Details for:
Danielsen N. Understanding Density Matrices 2019
danielsen n understanding density matrices 2019
Type:
E-books
Files:
1
Size:
5.9 MB
Uploaded On:
Oct. 22, 2021, 2:52 p.m.
Added By:
andryold1
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Info Hash:
C8B8CB459149FD567AE82A3AE1877B1E8EF57B37
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Textbook in PDF format "In Understanding Density Matrices, the modulus and phase degrees-of-freedom of molecular states are examined, the relevant continuity relations are identified, and corresponding contributions to the resultant gradient information are summarized. The geometric and physical factors in contributions to the overall gradient information content in a quantum state are also identified. Following this, a formalism is presented for the one- and two-body density matrices in coordinate space and their Fourier transforms in momentum space of a non-relativistic, self-bound, finite-size quantum system. The formalism based upon the so-called Cartesian representation in quantum mechanics is applied to atomic nuclei with a focus on nucleon momentum distributions which reveal important information on short-range correlations. Next, the authors investigate the problem of preparing a target initial state for a two-level system from a system-environment equilibrium or correlated state by an external field. By using the timeevolutions of the population difference, the state trajectory in the Bloch sphere representation, and the trace distance between two reduced system states of the open quantum system, the effect of initial system-environment correlations on the preparation of a system state is studied. The authors also study the role of the density matrix in a cryptographic problem called quantum bit commitment, and show how it can be used as a clue for finding secure quantum bit commitment protocols. In subsequent chapter, optical bistability in ladder-plus-Y double quantum dot structure in a unidirectional ring-cavity was modeled using the density matrix theory in parallel with the momentum matrix elements of each transition, which was used to specify Rabi frequencies. Additionally, the phase transition temperatures of the two-dimensional lattice gas of the basal and prism planes of the wurtzite crystal structure were explored using the density-matrix renormalization-group method. In the closing chapter, the mathematical methods of the description of the evolution of states of quantum many-particle systems by means of the possible modifications of the density operator are considered". Density Matrix in Determining Electron Communications and Resultant Information Content in Molecular States Intrinsic Density Matrices and Related Quantities of Finite Quantum Systems in a Cartesian Representation and Applications in Light Atomic Nuclei Master Equation for the Reduced Density Matrix of a Driven Open Quantum System Chapter 4 Density Matrices in Quantum Bit Commitment Optical Bistability in Double Quantum Dot System Density-Matrix Renormalization-Group Study of Lattice Gas on the Surface of a Wurtzite Crystal Structure Description of Evolution of States in Terms of Operators Originating by Density Matrix
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Danielsen N. Understanding Density Matrices 2019.pdf
5.9 MB
