New Spin-Orbit-Induced Universality Class in the Integer Quantum Hall Regime
... probability for such a Zener tunneling [17] depends on the local potential gradient, and is exponentially close to unity for strongly varying potentials [18]. In fact, since the tunneling probability at the saddle-point energy is equal to 1=2 [19], one may expect that for short-correlated potentials ...
... probability for such a Zener tunneling [17] depends on the local potential gradient, and is exponentially close to unity for strongly varying potentials [18]. In fact, since the tunneling probability at the saddle-point energy is equal to 1=2 [19], one may expect that for short-correlated potentials ...
Performance of Many–Body Perturbation Theory
... potential. This choice was motivated by a study done by Kumar et al. [7] in 1990 using self-consistent combined Hartree and Poisson solutions. They showed that the 2D harmonic oscillator potential is a good first approximation, at least for few electrons. Theoretically the shell structure was seen a ...
... potential. This choice was motivated by a study done by Kumar et al. [7] in 1990 using self-consistent combined Hartree and Poisson solutions. They showed that the 2D harmonic oscillator potential is a good first approximation, at least for few electrons. Theoretically the shell structure was seen a ...
Stability of Complex Biomolecular Structures: van der Waals
... focus on the structure with two antiparallel polyQ strands and calculate as well the VDOS given by the Fourier transform of the velocity autocorrelation function from an ab initio MD (AIMD) run (i.e., with classical nuclei) and from the newly proposed thermostated ring polymer molecular dynamics (TR ...
... focus on the structure with two antiparallel polyQ strands and calculate as well the VDOS given by the Fourier transform of the velocity autocorrelation function from an ab initio MD (AIMD) run (i.e., with classical nuclei) and from the newly proposed thermostated ring polymer molecular dynamics (TR ...
Publication : Relativistic Coupled Cluster Calculations with
... (SEVP), and the higher-order QED terms [22]. Our implementation of the MLSO formalism into the Tel Aviv atomic computational package allows us to obtain the VP and SE contributions beyond the usual mean-field level, namely at the DCB-FSCCSD level. The individual QED contributions are presented in Ta ...
... (SEVP), and the higher-order QED terms [22]. Our implementation of the MLSO formalism into the Tel Aviv atomic computational package allows us to obtain the VP and SE contributions beyond the usual mean-field level, namely at the DCB-FSCCSD level. The individual QED contributions are presented in Ta ...
"Effects of quantum chemistry models for bound electrons on positron annihilation spectra for atoms and small molecules" New J. Phys. , 14 , 085022 (2012). F. Wang, X. Ma, L. Selvam, G. F. Gribakin, and C. M Surko (PDF)
... also started appearing in the recent literature [12–15]. In particular, we have developed and explored a low-energy plane-wave positron (LEPWP) approximation for estimating the Doppler-shift spectra of annihilation γ-rays and tested it for noble gas atoms [12] and small molecules [13–15]. In this ap ...
... also started appearing in the recent literature [12–15]. In particular, we have developed and explored a low-energy plane-wave positron (LEPWP) approximation for estimating the Doppler-shift spectra of annihilation γ-rays and tested it for noble gas atoms [12] and small molecules [13–15]. In this ap ...
Real-time, real-space implementation of the linear response time
... The approximation inherent in Eq. (15) may be improved by using the predictor-corrector method [25]. In the method, a density at a time t + Dt is estimated once by Eq. (16). The density at a time t + Dt / 2 is then approximated by (n(t ) + n(t + Dt / 2))/ 2 . Then the Hamiltonian hKS [(n(t ) + n(t + ...
... The approximation inherent in Eq. (15) may be improved by using the predictor-corrector method [25]. In the method, a density at a time t + Dt is estimated once by Eq. (16). The density at a time t + Dt / 2 is then approximated by (n(t ) + n(t + Dt / 2))/ 2 . Then the Hamiltonian hKS [(n(t ) + n(t + ...
Prof.P. Ravindran, Sommerfield Model for Free Electron Theory
... Sommerfeld proposed this theory in 1928 retaining the concept of free electrons moving in a uniform potential within the metal as in the classical theory, but treated the electrons as obeying the laws of quantum mechanics. Based on the deBroglie wave concept, he assumed that a moving electron behave ...
... Sommerfeld proposed this theory in 1928 retaining the concept of free electrons moving in a uniform potential within the metal as in the classical theory, but treated the electrons as obeying the laws of quantum mechanics. Based on the deBroglie wave concept, he assumed that a moving electron behave ...
Role of disorder in half-filled high Landau levels
... Recent experiments have discovered a set of compressible states with anisotropic low-temperature magnetotransport properties in high-mobility quantum Hall systems near half filling of the high Landau levels 共LLs兲.1 Subsequently, it was proposed that these properties, emerging as a consequence of str ...
... Recent experiments have discovered a set of compressible states with anisotropic low-temperature magnetotransport properties in high-mobility quantum Hall systems near half filling of the high Landau levels 共LLs兲.1 Subsequently, it was proposed that these properties, emerging as a consequence of str ...
Chapter 37 - Semiclassical quantization
... Spectral determinants and dynamical zeta functions arise both in classical and quantum mechanics because in both the dynamical evolution can be described by the action of linear evolution operators on infinite-dimensional vector spaces. In quantum mechanics the periodic orbit theory arose from studi ...
... Spectral determinants and dynamical zeta functions arise both in classical and quantum mechanics because in both the dynamical evolution can be described by the action of linear evolution operators on infinite-dimensional vector spaces. In quantum mechanics the periodic orbit theory arose from studi ...
Lecture Notes: Condensed Matter Theory I (TKM1)
... as the Coulomb interaction between electrons is neither small nor irrelevant. At this point we make this assumption without further justi…cation and come back to it later. We will see that there are numerous situation where the behavior of the electrons is e¤ectively described by non-interacting fer ...
... as the Coulomb interaction between electrons is neither small nor irrelevant. At this point we make this assumption without further justi…cation and come back to it later. We will see that there are numerous situation where the behavior of the electrons is e¤ectively described by non-interacting fer ...
An experimental chemist`s guide to ab initio quantum chemistry
... As a scientific tool, ab initio quantum chemistry is not yet very accurate when compared to modern laser spectroscopic measurements, for example. Moreover, it is difficult to estimate the accuracies with which various methods will predict bond energies and lengths, excitation energies, and the like. ...
... As a scientific tool, ab initio quantum chemistry is not yet very accurate when compared to modern laser spectroscopic measurements, for example. Moreover, it is difficult to estimate the accuracies with which various methods will predict bond energies and lengths, excitation energies, and the like. ...
Many-body properties of a spherical two
... modes of the S2DEG.9 In Sec. IV we extend this investigation to include excitations with large angular momentum l 共so that l/L F ⬎1), keeping the regime studied by Inaoka as a limiting case. By investigating a much broader portion of the excitation spectrum, we identify the nature of the excitations ...
... modes of the S2DEG.9 In Sec. IV we extend this investigation to include excitations with large angular momentum l 共so that l/L F ⬎1), keeping the regime studied by Inaoka as a limiting case. By investigating a much broader portion of the excitation spectrum, we identify the nature of the excitations ...
Electronic transport for armchair graphene nanoribbons with a
... Recently, graphene has attracted intensive research attention due to the successful fabrication experiments [1–6]. Several abnormal phenomena have been observed [2,3], such as half integer quantum Hall effect, nonzero Berry’s phase and minimum conductance. These unusual transport properties may resu ...
... Recently, graphene has attracted intensive research attention due to the successful fabrication experiments [1–6]. Several abnormal phenomena have been observed [2,3], such as half integer quantum Hall effect, nonzero Berry’s phase and minimum conductance. These unusual transport properties may resu ...
Spin-Orbit-Mediated Anisotropic Spin Interaction in Interacting Electron Systems
... However, either by including magnetic field (Zeeman interaction, see below) in a direction different from y , or by increasing the dimensionality of the dots by reducing the anisotropy of the confining potential, the spin-orbital Hamiltonian acquires additional noncommuting spin operators. The pres ...
... However, either by including magnetic field (Zeeman interaction, see below) in a direction different from y , or by increasing the dimensionality of the dots by reducing the anisotropy of the confining potential, the spin-orbital Hamiltonian acquires additional noncommuting spin operators. The pres ...
Plasmon electron energy-gain spectroscopy
... cross-section of the nanoshells. (c) Induced electric field intensity along the ẑ direction as a function of distance along the electron trajectory upon irradiation with light of wavelength = 762 nm for gold and 745 nm for silver. Solid curves: contribution of the dipole plasmon. Broken curves: ful ...
... cross-section of the nanoshells. (c) Induced electric field intensity along the ẑ direction as a function of distance along the electron trajectory upon irradiation with light of wavelength = 762 nm for gold and 745 nm for silver. Solid curves: contribution of the dipole plasmon. Broken curves: ful ...
Electron shell contributions to gamma
... (i.e. to the principal quantum number n and the orbital angular quantum number l). Table 2 reports the bound electron contributions to the spectra of the noble gases. It is always the innermost shells, either 1s or 2p, that have the largest FWHM ε, and they are significantly larger than the measure ...
... (i.e. to the principal quantum number n and the orbital angular quantum number l). Table 2 reports the bound electron contributions to the spectra of the noble gases. It is always the innermost shells, either 1s or 2p, that have the largest FWHM ε, and they are significantly larger than the measure ...
Quantum kinetic theory for a condensed bosonic gas
... dependence is unaccounted for.1 Although, the set of operators is unspecified so far, it can include operators such as unity (1), number (N̂), linear momentum ( P̂), angular momentum (L̂), and energy (Ĥ). The larger the set of operators, the better the quality of any subsequent approximation. The t ...
... dependence is unaccounted for.1 Although, the set of operators is unspecified so far, it can include operators such as unity (1), number (N̂), linear momentum ( P̂), angular momentum (L̂), and energy (Ĥ). The larger the set of operators, the better the quality of any subsequent approximation. The t ...
Semiclassical formula for the number variance of the Riemann zeros
... conform to GUE predictions, long-range statistics (such as the correlations between distant spacings) do not, and are better described in terms of primes. I have argued elsewhere [ 5 , 6 ] that exactly this behaviour would be expected if the E, were eigenvalues not of a random matrix but of the Hami ...
... conform to GUE predictions, long-range statistics (such as the correlations between distant spacings) do not, and are better described in terms of primes. I have argued elsewhere [ 5 , 6 ] that exactly this behaviour would be expected if the E, were eigenvalues not of a random matrix but of the Hami ...
Importance of electronic correlations for pnictide superconductor LaFeAsO
... PHYSICAL REVIEW B 84, 054529 (2011) ...
... PHYSICAL REVIEW B 84, 054529 (2011) ...