نتایج جستجو برای: integral spin

تعداد نتایج: 236359  

2008
T. Kojima S. Yamasita

(1) n−1 chain Abstract We study the A (1) n−1 spin chain at the critical regime |q| = 1. We give the free boson realizations of the type-I vertex operators and their duals. Using these free boson realizations, we give the integral representations for the correlation functions.

Journal: :علوم باغبانی ایران 0
مهدی حدادی نژاد استادیار، کارشناس ارشد و دانشجوی سابق کارشناسی، گروه علوم باغبانی دانشگاه علوم کشاورزی و منابع طبیعی ساری سمیه قاسمی عمران استادیار، کارشناس ارشد و دانشجوی سابق کارشناسی، گروه علوم باغبانی دانشگاه علوم کشاورزی و منابع طبیعی ساری فاطمه عظیمی آهنگری استادیار، کارشناس ارشد و دانشجوی سابق کارشناسی، گروه علوم باغبانی دانشگاه علوم کشاورزی و منابع طبیعی ساری

blackberry diversity is high in iran due to its wild and natural populations especially in south of caspian sea. however it has not been investigated before. the goal of this work was to evaluate some wild populations of black berry in mazandaran province of iran. at first, region and then location of blackberries plants identified and the traits of leaf, stem, spin, flower, fruit quantity and ...

2008
J. Suzuki

We propose a set of nonlinear integral equations to describe on the excited states of an integrable the spin 1 chain with anisotropy. The scaling dimensions, evaluated numerically in previous studies, are recovered analytically by using the equations. This result may be relevant to the study on the supersymmetric sine-Gordon model.

2008
I A Junior

We present a path integral representation for massless spin one-half particles. It is shown that this gives us a super–symmetric, P − and T −non–invariant pseudoclassical model for relativistic massless spinning particles. Dirac quantization of this model is considered.

Journal: :Physical review letters 2001
P Borrmann J Harting

Using the path integral Monte Carlo technique we show that semiconductor quantum rings with up to six electrons exhibit a temperature, ring diameter, and particle number dependent transition between spin ordered and disordered Wigner crystals. Because of the small number of particles the transition extends over a broad temperature range and is clearly identifiable from the electron pair correla...

2001
Stoil Donev

This paper aims to present explicit photon-like (3+1) spatially finite soliton solutions of screw type to the vacuum field equations of Extended Electrodynamics (EED) in relativistic formulation. We begin with emphasizing the need for spatially finite soliton modelling of microobjects. Then we briefly comment the properties of solitons and photons and recall some facts from EED. Making use of t...

2008
Pierluigi Contucci Cristian Giardinà Hidetoshi Nishimori

For a general spin glass model with asymmetric couplings we prove a family of identities involving expectations of generalized overlaps and magnetizations in the quenched state. Those identities holds pointwise in the Nishimori line and are reached at the rate of the inverse volume while, in the general case, they can be proved in integral average.

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1979
R Haberkorn M E Michel-Beyerle R A Marcus

A discrepancy is explored regarding the spin exchange integral estimated from magnetic field effects on recombination of the bacteriochlorophyll dimer cation (Bchl)(2)+ and the bacteriopheophytin anion Bph(-) and the measured electron transfer rate between Bph and electronically excited (Bchl)(2). In one explanation considered here there are two sites for the electron or for the hole, with a ho...

Journal: :Physical review letters 2008
B Basso G P Korchemsky J Kotański

We construct an analytical solution to the integral equation which is believed to describe logarithmic growth of the anomalous dimensions of high-spin operators in planar N=4 super Yang-Mills theory and use it to determine the strong coupling expansion of the cusp anomalous dimension.

2004
Frank Göhmann Andreas Klümper Alexander Seel

We present an integral formula for the density matrix of a finite segment of the infinitely long spin-1 2 XXZ chain. This formula is valid for any temperature and any longitudinal magnetic field. PACS: 05.30.-d, 75.10.Pq †e-mail: [email protected] ∗e-mail: [email protected] ‡e-mail: [email protected]

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