Results 51 to 60 of about 72,702 (264)

Linear-algebraic bath transformation for simulating complex open quantum systems

open access: yesNew Journal of Physics, 2014
In studying open quantum systems, the environment is often approximated as a collection of non-interacting harmonic oscillators, a configuration also known as the star-bath model. It is also well known that the star-bath can be transformed into a nearest-
Joonsuk Huh   +4 more
doaj   +1 more source

Uso de modelos de regressão aleatória para descrever a variação genética da produção de leite na raça Holandesa Random regressions models to describe the genetic variation of milk yield in Holstein breed

open access: yesRevista Brasileira de Zootecnia, 2006
Registros de produção de leite de 68.523 controles leiteiros de 8.536 vacas da raça Holandesa, com parições nos anos de 1996 a 2001, foram utilizados na comparação entre modelos de regressão aleatória para estimação de componentes de variância.
Cláudio Vieira de Araújo   +8 more
doaj   +1 more source

An Algebraic Model for the Multiple Meixner Polynomials of the First Kind

open access: yes, 2012
An interpretation of the multiple Meixner polynomials of the first kind is provided through an infinite Lie algebra realized in terms of the creation and annihilation operators of a set of independent oscillators.
Alexei Zhedanov   +10 more
core   +1 more source

Multiple Orthogonal Polynomials in Random Matrix Theory [PDF]

open access: yesProceedings of the International Congress of Mathematicians 2010 (ICM 2010), 2011
15 pages, 3 figures, to appear in Proceedings of the International Congress of Mathematicians, Hyderabad, India, 2010.
openaire   +2 more sources

Three-fold symmetric Hahn-classical multiple orthogonal polynomials [PDF]

open access: yesAnalysis and Applications, 2019
We characterize all the multiple orthogonal three-fold symmetric polynomial sequences whose sequence of derivatives is also multiple orthogonal. Such a property is commonly called the Hahn property and it is an extension of the concept of classical polynomials to the context of multiple orthogonality.
Van Assche, Walter, Loureiro, Ana
openaire   +4 more sources

Imaging of Biphoton States: Fundamentals and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Multiple orthogonal polynomials, string equations and the large-n limit [PDF]

open access: yes, 2009
The Riemann-Hilbert problems for multiple orthogonal polynomials of types I and II are used to derive string equations associated with pairs of Lax-Orlov operators.
Martínez Alonso, Luis   +1 more
core   +2 more sources

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

open access: yesAdvanced Functional Materials, EarlyView.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song   +16 more
wiley   +1 more source

Orthogonal polynomials with a resolvent-type generating function

open access: yes, 2006
The subject of this paper are polynomials in multiple non-commuting variables. For polynomials of this type orthogonal with respect to a state, we prove a Favard-type recursion relation. On the other hand, free Sheffer polynomials are a polynomial family
Anshelevich, Michael
core   +1 more source

Strong asymptotics for the Pollaczek multiple orthogonal polynomials [PDF]

open access: yes, 2014
The asymptotic properties of multiple orthogonal polynomials with respect to two Pollaczek weights with different parameters are considered. This set of weights is a Nikishin system generated by two measures with unbounded supports; moreover, the second ...
Aptekarev, A. I.   +2 more
core   +3 more sources

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