Results 61 to 70 of about 17,519,874 (311)

Potential theory on almost complex manifolds [PDF]

Annales de l'Institut Fourier, 2015
On almost complex manifolds the pseudo-holomorphic curves have been much more intensely studied than their “dual” objects, the plurisubharmonic functions. These functions are standardly defined by requiring that the restriction to each pseudo-holomorphic curve be subharmonic.
Harvey, F. Reese, Lawson, H. Blaine
openaire   +3 more sources

Complex periodic potentials with real band spectra

, 1998
This paper demonstrates that complex PT-symmetric periodic potentials possess real band spectra. However, there are significant qualitative differences in the band structure for these potentials when compared with conventional real periodic potentials ...
Belokolos, Bender, Bender, Bender, Bender, Bender, Carl M. Bender, Gerald V. Dunne, Hatano, Hatano, Hollowood, Kittel, Magnus, Nelson, Peter N. Meisinger   +14 more
core   +1 more source

Complex absorbing potential method for systems [PDF]

Dissertationes Mathematicae, 2010
The Complex Absorbing Potential (CAP) method is widely used to compute resonances in Quantum Chemistry, both for scalar valued and matrix valued Hamiltonians. In the semiclassical limit h → 0 we consider resonances near the real axis and we establish the CAP method rigorously in an abstract matrix valued setting by proving that resonances are perturbed
Jimmy Kungsman, Michael Melgaard
openaire   +3 more sources

New supersymmetry-generated complex potentials with real spectra [PDF]

, 2015
A new form to construct complex superpotentials that produce real energy spectra in supersymmetric quantum mechanics is presented. This is based on the relation between the nonlinear Ermakov equation and a second order differential equation of the ...
O. Rosas‐Ortiz, O. Castaños, D. Schuch   +2 more
semanticscholar   +1 more source

Families of stationary modes in complex potentials. [PDF]

Optics Letters, 2014
We show that a general class of complex asymmetric potentials of the form w2(x)-iw(x)(x), where w(x) is a real function, allows for the existence of one-parametric continuous families of the stationary nonlinear modes bifurcating from the linear spectrum
V. Konotop, D. Zezyulin
semanticscholar   +1 more source

Revisiting classical concepts of Linear Elastic Fracture Mechanics - Part II: Stretching finite strips weakened by single edge parabolically-shaped notches

Fracture and Structural Integrity
This is the second part of a short three-paper series, aiming to revisit some classical concepts of Linear Elastic Fracture Mechanics. Being the intermediate step of the analysis between infinite domains (discussed in Part-I) and finite bodies (that will
Christos F. Markides, Stavros K. Kourkoulis   +1 more
doaj   +1 more source

Eigenvalue Spectrum of a Dirac Particle in Static and Spherical Complex Potential

, 2003
It has been observed that a quantum theory need not to be Hermitian to have a real spectrum. We study the non-Hermitian relativistic quantum theories for many complex potentials, and we obtain the real relativistic energy eigenvalues and corresponding ...
Saaidi, Khaled
core   +2 more sources

Jost Function for Coupled Partial Waves [PDF]

, 1997
An exact method for direct calculation of the Jost functions and Jost solutions for non-central potentials which couple partial waves of different angular momenta is presented.
, Abramowitz M, Blatt J M, Calogero F, Connor J N L, Fabre de la Ripelle M, Goldberger M, Kamke E, Kukulin V I, Landau L D, Maier C H, Mathews J, Michel F, Newton R G, Palumbo F, Pupyshev V V, Rakityansky S A, Reid R V, S A Rakityansky, S A Sofianos, Sofianos S A, Taylor J R, Yamani H A   +22 more
core   +2 more sources

Potential Early Risk Biomarkers for Reduced Forced Expiratory Volume in Children Post‐Hematopoietic Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT We sought to identify potential early risk biomarkers for lung disease in children post‐allogeneic HCT. Patients with pulmonary function tests 3 months post‐transplant and plasma samples between days 7 and 14 post‐HCT were included. Six of 27 subjects enrolled had reduced forced expiratory volume 1 (FEV1) z scores.
Isabella S. Small, Pi Chun Cheng, April L. Rahrig, Courtney M. Rowan   +3 more
wiley   +1 more source

Solitons supported by complex PT symmetric Gaussian potentials

, 2011
The existence and stability of fundamental, dipole, and tripole solitons in Kerr nonlinear media with parity-time symmetric Gaussian complex potentials are reported.
Hu, Sumei, Hu, Wei, Lu, Daquan, Ma, Xuekai, Yang, Zhenjun, Zheng, Yizhou   +5 more
core   +1 more source