Results 31 to 40 of about 2,993,437 (368)

Approximating the ground state of fermion system by multiple determinant states: matching pursuit approach [PDF]

open access: yes, 2008
We present a simple and stable numerical method to approximate the ground state of a quantum many-body system by multiple determinant states. This method searches these determinant states one by one according to the matching pursuit algorithm.
A. Parola, Quanlin Jie, R. Gribonval
core   +1 more source

Determinant of a new fermionic action on a lattice - (I) [PDF]

open access: yes, 2000
We investigate, analytically and numerically, the fermion determinant of a new action on a (1+1)-dimensional Euclidean lattice. In this formulation the discrete chiral symmetry is preserved and the number of fermion components is a half of that of Kogut ...
Hashimoto, T.   +3 more
core   +3 more sources

Determinant representation for dynamical correlation functions of the Quantum nonlinear Schr\"odinger equation [PDF]

open access: yes, 1996
The foundation for the theory of correlation functions of exactly solvable models is determinant representation. Determinant representation permit to describe correlation functions by classical completely integrable differential equations [Barough, McCoy,
Kojima, T., Korepin, V., Slavnov, N.
core   +2 more sources

Circular Entrepreneurship in Emerging Markets through the Lens of Sustainability

open access: yesJournal of Open Innovation: Technology, Market and Complexity, 2022
: The purpose of this research paper is to explore the antecedents and consequences of circular entrepreneurship in emerging markets. The consequences of circular entrepreneurship will be explored through the lens of three dimensions of sustainability ...
Rui Miguel Dantas   +2 more
doaj   +1 more source

A comparative study of overlap and staggered fermions in the Schwinger model [PDF]

open access: yes, 2004
We investigate the validity of the square rooting procedure of the staggered determinant in the context of the Schwinger model. We find some evidence that at fixed physical quark mass the square root of the staggered determinant becomes proportional to ...
Aubin   +11 more
core   +2 more sources

Elaborating the Challenges of Health Insurance Extent of Coverage and Proposing Solutions from Experts Perspectives

open access: yesRāhburdhā-yi Mudīriyyat dar Niẓām-i Salāmat, 2022
Background: The health insurance extent of coverage was decided by the Health Insurance Organization in order to manage costs. In this plan, to determine the extent of payment by each medical center, the performance of the year 2017 was considered the ...
Azam Delavarinejad   +3 more
doaj  

Syphilis Self-Testing Among Female Sex Workers in China: Implications for Expanding Syphilis Screening

open access: yesFrontiers in Public Health, 2022
BackgroundSyphilis self-testing (SST) may help expand syphilis test uptake among female sex workers. However, there has been no studies on examining SST among female sex workers.
Cheng Wang   +7 more
doaj   +1 more source

Determinant-Gravity: Cosmological implications

open access: yes, 2004
We analyze the action $\int d^4x \sqrt{\det||{\cal B} g_{\mu\nu}+ {\cal C} R_{\mu\nu}}||$ as a possible alternative or addition to the Einstein gravity. Choosing a particular form of ${\cal B}(R)= \sqrt {R}$ we can restore the Einstein gravity and, if $
A Dolgov   +14 more
core   +1 more source

Complex Langevin dynamics and zeroes of the fermion determinant [PDF]

open access: yes, 2017
A bstractQCD at nonzero baryon chemical potential suffers from the sign problem, due to the complex quark determinant. Complex Langevin dynamics can provide a solution, provided certain conditions are met.
G. Aarts   +3 more
semanticscholar   +1 more source

On the expressive power of read-once determinants

open access: yes, 2015
We introduce and study the notion of read-$k$ projections of the determinant: a polynomial $f \in \mathbb{F}[x_1, \ldots, x_n]$ is called a {\it read-$k$ projection of determinant} if $f=det(M)$, where entries of matrix $M$ are either field elements or ...
A Shpilka   +8 more
core   +1 more source

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