نتایج جستجو برای: lattice hole theory

تعداد نتایج: 908767  

Journal: :Physical Review B 2021

We put forth a mechanism for enhancing the interlayer transport in cuprate superconductors, by optically driving plasmonic excitations along $c$ axis with frequency that is blue-detuned from Higgs frequency. The induce collective oscillation of field which induces parametric enhancement superconducting response, as we demonstrate minimal analytical model. Furthermore, perform simulations partic...

Journal: :Physical review. B, Condensed matter 1996
Yu Guerrero

We study an Anderson impurity in a semiconducting host using the density matrix renormalization group technique. We use the U50 one-dimensional Anderson Hamiltonian at half filling as the semiconducting host since it has a hybridization gap. By varying the hybridization of the host, we can control the size of the semiconducting gap D . We consider chains with 25 sites and we place the Anderson ...

2009
Y. M. Soliman D. F. Goettler Z. C. Leseman I. El-Kady R. H. Olsson

We have experimentally investigated the effects of release hole size on acoustic transmission through micromachined phononic band gap crystals. The results confirm previous theoretical studies and determine the range of release hole sizes for which the band gap is minimally compromised. The experiments were performed on micro fabricated 2D phononic crystal plates comprised of high acoustic impe...

1999
G Burgio F Di Renzo M Pepe L Scorzato

Several Wilson loops on several lattice sizes are computed in Perturbation Theory via a stochastic method. Applications include: Renormalons, the Mass Term in HQET and (possibly) the β-function. Outlook Wilson Loops (WL) were the historic playground (and success. . .) of Numerical Stochastic Perturbation Theory (NSPT) for Lattice Gauge Theory [1]. Having by now an increased computing power avai...

1998
Peter LEPAGE Paul B. MACKENZIE

Apparent large failures of perturbation theory in lattice gauge theory at g* 5 1.0 result from the use of the bare coupling constant of the lattice regulator in the perturbative expansion. They can be cured by the use of a coupling constant defined by some physical process. Thissituation is thesame as that encountered in dimensionally regularized perturbation theory, where the use of a coupling...

2017
Wei Wang Taotao Ai Qi Yu

Boron-doped zinc oxide sheet-spheres were synthesized on PET-ITO flexible substrates using a hydrothermal method at 90 °C for 5 h. The results of X-ray diffraction and X-ray photoelectron spectroscopy indicated that the B atoms were successfully doped into the ZnO lattice, the incorporation of B led to an increase in the lattice constant of ZnO and a change in its internal stress. The growth me...

Journal: :The Journal of chemical physics 2004
J L Vega R Guantes S Miret-Artés D A Micha

The dynamics of atoms or molecules adsorbed on a metal surface, and excited by collisions with an atomic beam, are treated within a theory that includes energy dissipation into lattice vibrations by means of a frequency and temperature dependent friction function. The theory provides dynamic structure factors for energy transfer derived from collisional time correlation functions. It describes ...

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