The density matrix
CiteSeerX — Calculation Of The Density Matrix Of Liquid
... A system of N atoms of liquid 4 He is under consideration. The calculation of the one-particle density matrix based on the pair-corre- lation function method is presented. Number of terms is factorized and ...
10
Contradiction of the DENSITY MATRIX Notion in Quantum Mechanics
... More over, results of the experiments depend on tun- ing of the coincidence events, and this tuning can be arranged in such a way that one can get not only viola- tion, but even super violation of the Bell’s ...
7
A Variational Framework for Spectral Discretization of the Density Matrix in Kohn-Sham Density Functional Theory
... linear-scaling density functional theory implementations that approximate the density matrix either by using polynomials or rational ...the density matrix of the linearized problem ...
146
Accurate variational electronic structure calculations with the density matrix renormalization group
... 2 Department of Chemistry, McMaster University, Hamilton, Ontario, Canada We have implemented the sweep algorithm for the variational optimization of SU(2) ⊗ U(1) (spin and particle number) invariant matrix ...
225
Linear response theory for the density matrix renormalization group: Efficient algorithms for strongly correlated excited states
... Although the DMRG algorithm has been very successful to investigate ground states of strongly correlated systems, there are difficulties for excited states. These arise from the fact that the optimal choice of ...
14
CiteSeerX — reduced-density-matrix-functional theory
... the density matrix of all non-interacting systems it is impos- sible to reproduce the density matrix of an interacting system since the latter is always ...
8
Density matrix approach for quantum free-electron lasers
... The density matrix in the Lindblad form is used to describe the behavior of the Free-Electron Laser (FEL) operating in a quantum ...the density matrix formalism provides a simple method to ...
12
Ultrafast quantum control of atoms and molecules : a density matrix approach
... Chapter 3 Multiphoton π-pulse excitation schemes for Coherent Control In this chapter, multiphoton π-pulse excitation scheme is presented as a more suitable alternative to single-photon excitation schemes for achieving ...
158
Physics 125c Course Notes Density Matrix Formalism Frank Porter
... (a) Was Oivil just lucky, or will he get the right answer every time, for each apparatus? Demonstrate your answer explicitly, in the density matrix formalism. (b) What is the probability that Livio will ...
28
Density matrix theory of transport and gain in quantum cascade lasers in a magnetic field
... the density-matrix or nonequilibrium Green’s function ...and density matrix approaches in a mid-infrared QCL performed by Iotti et ...current density are ...
16
New Theory of Superconductivity Method of Equilibrium Density Matrix Magnetic Field in Superconductor
... This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract A new variational method has been proposed for studying the equilibrium ...
20
Density-matrix simulation of small surface codes under current and projected experimental noise
... github.com/brianzi/quantumsim). We use quantumsim to extract the logical error rate per QEC cycle, ϵ L . This metric allows us to optimize and trade-off between QEC cycle parameters, assess the merits of feedback ...
8
The study of optical gain for terahertz quantum cascade laser using density matrix method
... Graphical abstract Abstract Terahertz (THz) quantum cascade lasers (QCL) are currently increasing in popularity. It is expected to become the main source of emerging terahertz radiation technology and applications. ...
6
Density matrix superoperator for periodic quantum systems and its application to quantum cascade laser structures
... We illustrated how NRWA affects the periodic system and dis- cussed key approximations that are commonly introduced in the DM formalism. We applied our model to an exemplary periodic structure and QCL structure ...
16
Incorporation of density-matrix wave functions in Monte Carlo simulations: Application to the frustrated Heisenberg model
... the density-matrix renormalization-group 共 DMRG 兲 technique with Green function Monte Carlo 共 GFMC 兲 simulations using a special representation of the DMRG wave ...
11
Semiempirical Atom-centered Density Matrix Propagation Approach to Temperature-dependent Vibrational Spectroscopy of Irinotecan
... In this manner, the resulting fictitious dynamics allows controllable oscillations around the Born-Oppenhei- mer surface. As in the ADMP scheme the self-consistence field (SCF) convergence is not achieved, one has to ...
11
Orgone Matrix Density Grades
... Medium Density Orgonite At left are some samples of MD ...enough matrix to convert DOR to OR, but does not work very efficiently in an orgone-on-demand ...
6
Mean-Field Density Matrix Decompositions
... Limiting our discussion herein to descriptors that have been designed with chemical Hamil- tonians in mind, rather than applications in the solid state or condensed-matter physics more generally, 105–125 recent examples ...
67
Phase Space Density Matrix for Emotion Recognition
... space density matrix ...GLCM matrix from both Beta and Gamma band of the six EEG channels (Fp1, Fp2, Cz, Fz, F3, and F4) to form the features ...
6
Functional N Representability in 2 Matrix, 1 Matrix, and Density Functional Theories
... how Density Matrix Functional Theory, DMFT, has slowly evolved in the last almost five decades and how little by little, N-represent- ability conditions for density matrices, in particular for the ...
10