نتایج جستجو برای: xx spin chain model

تعداد نتایج: 2453972  

Journal: :Physical chemistry chemical physics : PCCP 2010
Yasar Akdogan Jeannine Heller Herbert Zimmermann Dariush Hinderberger

Ionic liquids (ILs) feature a variety of properties that make them a unique class of solvents. To gain a better understanding of how ILs solvate compounds of different chemical structure, we used pulsed high-field electron paramagnetic resonance (EPR) spectroscopy at W-band (approximately 94 GHz) and continuous wave EPR at X-band (approximately 9.4 GHz) on three TEMPO-based spin probes with dif...

Journal: :PRX quantum 2021

We study the reduced dynamics of open quantum spin chains arbitrary length $N$ with nearest neighbour $XX$ interactions, immersed within an external constant magnetic field along $z$ direction, whose end spins are weakly coupled to heat baths at different temperatures, via energy preserving couplings. find analytic expression unique stationary state master equation obtained in so-called global ...

2005
Jürgen Schnack

Geometric frustration of interacting spin systems is the driving force of a variety of fascinating phenomena in lowdimensional magnetism. In this contribution I will review recent results on frustration-induced effects in magnetic molecules, i.e. zero-dimensional magnetic systems, as well as in a recently synthesized frustrated molecule-based spin tube, i.e. a one-dimensional spin system. c © 2...

2010
Joris Van der Jeugt

We investigate the time evolution of a single spin excitation state in certain linear spin chains, as a model for quantum communication. We consider first the simplest possible spin chain, where the spin chain data (the nearest neighbour interaction strengths and the magnetic field strengths) are constant throughout the chain. The time evolution of a single spin state is determined, and this ti...

رجبی, علی‌اکبر , صالحی, نسرین ,

  Meson is composed of one quark and one antiquark moving under the effect of confinement, oscillating and color potentials. Since quarks are particles with spin , there is a spin-spin interaction potential. Also we have isospins for u and d quarks and we can consider related potentials on isospin-isospin and spin-isospin effects. By comparing the given meson spectrum with the amount calculated...

2008
Davide Rossini Vittorio Giovannetti

We analyze the quality of the quantum information transmission along a correlated quantum channel by studying the average fidelity between input and output states and the average output purity, giving bounds for the entropy of the channel. Noise correlations in the channel are modeled by the coupling of each channel use with an element of a one dimensional interacting quantum spin chain. Critic...

Journal: :Reproduction in domestic animals = Zuchthygiene 2011
M Campos V Moreno-Manzano M García-Roselló E García-Roselló

Here, we describe a 3-month-old XX male French Bulldog. The diagnosis was based on the clinical signs, gonadal histology and cytogenetic analysis. Additionally, the dog was confirmed to be Sry negative by semi-quantitative reverse transcription polymerase chain reaction (sqRT-PCR). Canine Sry-negative XX sex reversal is a disorder of gonadal development where individuals who have a female karyo...

2006
Thierry Platini Dragi Karevski

Abstract. We present the results obtained on the magnetisation relaxation properties of an XX quantum chain in a transverse magnetic field. We first consider an initial thermal kink-like state where half of the chain is initially thermalized at a very high temperature Tb while the remaining half, called the system, is put at a lower temperature Ts. From this initial state, we derive analyticall...

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