Results 41 to 50 of about 11,885,573 (368)

Impurity-bound states and Green's function zeros as local signatures of topology [PDF]

, 2015
We show that the local in-gap Green's function of a band insulator ${\mathbf{G}}_{0}(\ensuremath{\epsilon},{\mathbf{k}}_{\ensuremath{\parallel}},{\mathbf{r}}_{\ensuremath{\perp}}=0)$, with ${\mathbf{r}}_{\ensuremath{\perp}}$ the position perpendicular to
Robert-Jan Slager, L. Rademaker, J. Zaanen, L. Balents   +3 more
semanticscholar   +1 more source

Universal behavior of quantum Green's functions

, 2003
We consider a general one-particle Hamiltonian H = - \Delta_r + u(r) defined in a d-dimensional domain. The object of interest is the time-independent Green function G_z(r,r') = .
Bielinska-Waz D., Brownell F. H., Changa M. E., Delabaere E., Driscoll T. A., J. K. Percus, L. Šamaj, P. Kalinay, Patil S. H., Sunada T., Zicovichwilson C., Šamaj L., Šamaj L.   +12 more
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Green's Function for Nonlocal Potentials [PDF]

, 1997
The single-particle nuclear potential is intrinsically nonlocal. In this paper, we consider nonlocalities which arise from the many-body and fermionic nature of the nucleus. We investigate the effects of nonlocality in the nuclear potential by developing
A B Balantekin, Aoki K, Aoki K, Aoki K, Aoki K, Baseia B, Brink D M, Feshbach H, Feshbach H, Frahn W E, Fröbrich P, Galetti D, J F Beacom, Jackson D F, M A Cândido Ribeiro, Mackintosh R S, Mott N F, Ziman J M   +17 more
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Calculation of Green's Function for Poisson's Equation in Plane Polar Coordinates

Trends in Computational and Applied Mathematics
A new calculation of Green's function for Poisson's equation in plane polar coordinates is presented. The method consists in first calculating the solution to the simpler problem, but with the same Green's function, that is obtained with the ...
R. T. Couto
doaj   +1 more source

Green's function in the color field of a large nucleus. [PDF]

Physical Review D, Particles and fields, 1994
We compute the Green's function for scalars, fermions, and vectors in the color field associated with the infinite momentum frame wave function of a large nucleus.
L. McLerran, R. Venugopalan
semanticscholar   +1 more source

Green's function for the wavized Maxwell fish-eye problem

, 2011
Unique transformation properties under the hyperspherical inversion of a partial differential equation describing a stationary scalar wave in an $N$-dimensional ($N\geqslant2$) Maxwell fish-eye medium are exploited to construct a closed form of the Green'
Szmytkowski, Radosław
core   +1 more source

Green's function for gravitational waves in FRW spacetimes

, 1993
A method for calculating the retarded Green's function for the gravitational wave equation in Friedmann-Roberson-Walker spacetimes, within the formalism of linearized Einstein gravity is developed.
A. Kosowsky, A. Kosowsky, Albert Stebbins, B. Allen, Bruce Allen, Bryce S. DeWitt, Bryce S. DeWitt, C. Misner, D. Bennett, J. Hadamard, J. S. Dowker, J. S. Dowker, L. H. Ford, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. Parker, L. Parker, Michael S. Turner, N. D. Birrell, N. Turok, P. C. Waylen, P. C. Waylen, R. G. McLenaghan, R. R. Caldwell, S. Veeraraghavan, S. Weinberg   +27 more
core   +1 more source

Analytic continuation-free Green's function approach to correlated electronic structure calculations [PDF]

, 2017
We present a new charge self-consistent scheme combining Density Functional and Dynamical Mean Field Theory, which uses Green's function of multiple scattering-type.
Chioncel, L., Vitos, L., Östlin, A.
core   +2 more sources

2D topological matter from a boundary Green's functions perspective: Faddeev-LeVerrier algorithm implementation

SciPost Physics, 2022
Since the breakthrough of twistronics a plethora of topological phenomena in correlated systems has appeared. These devices can be typically analyzed in terms of lattice models using Green's function techniques. In this work we introduce a general method
Miguel Alvarado, Alfredo Levy Yeyati
doaj   +1 more source

Strongly Correlated Topological Superconductors and Topological Phase Transitions via Green's Function

, 2012
We propose several topological order parameters expressed in terms of Green's function at zero frequency for topological superconductors, which generalizes the previous work for interacting insulators.
A. A. Abrikosov, G. E. Volovik, M. Nakahara, Shou-Cheng Zhang, Zhong Wang   +4 more
core   +1 more source