Eigenvalue instantons in the spectral form factor of random matrix model
نویسندگان
چکیده
منابع مشابه
Spectral Form Factor in a Random Matrix Theory
In the theory of disordered systems the spectral form factor S(τ), the Fourier transform of the two-level correlation function with respect to the difference of energies, is linear for τ < τc and constant for τ > τc. Near zero and near τc its exhibits oscillations which have been discussed in several recent papers. In the problems of mesoscopic fluctuations and quantum chaos a comparison is oft...
متن کاملThe Electromagnetic Pion Form Factor and Instantons
We calculate the electromagnetic pion form factor at intermediate spacelike momentum transfer from the QCD sum rule for the correlation function of two pseudoscalar interpolating fields and the electromagnetic current. This correlator receives essential contributions from direct (i.e. small-scale) instantons, which we evaluate under the assumption of an instanton size distribution consistent wi...
متن کاملfactor influencing the adoption of internet banking
دوره مشترک کارشناسی ارشد بازاریابی و تجارت الکترونیک دانشگاه تربیت مدرس_ دانشگاه تکنولوژی lule? چکیده پایان نامه عوامل موثر بر پذیرش اینترنت بانک توسط مشتریان پیشرفت فناوری اطلاعات و ارتباطات و به طور خاص رشد اینترنت جهت تراکنش های معاملات بازرگانی، تاثیر بسیار عمیقی در صنعت بانکداری داشته است.این در حالی ست که نفوذ بانکداری اینترنتی در کشورهای در حال توسعه بسیار کندتر از نفوذ آن ...
15 صفحه اولEigenvalue Separation in Some Random Matrix Models
The eigenvalue density for members of the Gaussian orthogonal and unitary ensembles follows the Wigner semi-circle law. If the Gaussian entries are all shifted by a constant amount c/(2N)1/2, where N is the size of the matrix, in the large N limit a single eigenvalue will separate from the support of the Wigner semi-circle provided c > 1. In this study, using an asymptotic analysis of the secul...
متن کاملThe Pauli form factor of the quark induced by instantons
The non-perturbative contribution to the Pauli form factor of the quark, F2(Q 2), is calculated within an instanton model for the QCD vacuum. It is shown that the instantons give a large negative contribution to the form factor. The interaction of photons with hadrons is one of the most powerful tools to investigate the structure of strong interactions. The electromagnetic form factors of hadro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2019
ISSN: 1029-8479
DOI: 10.1007/jhep03(2019)147