Results 21 to 30 of about 1,837,784 (319)

Field Redefinitions at Finite Density [PDF]

open access: yes, 2000
The apparent dependence of nuclear matter observables on off-shell properties of the two-nucleon potential is re-examined in the context of the effective field theory (EFT) approach.
Furnstahl, R. J.   +2 more
core   +4 more sources

Lower Bound of the Complexity of Seven-Valued Functions in the Class of Polarized Polynomials

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
One of the directions of the investigation of functions over finite fields is the study of their representations, including polynomial ones. In the area of polynomial representations of functions the problem of estimating the complexity of such ...
A.S. Baliuk, A.S. Zinchenko
doaj   +1 more source

Finite size mean-field models [PDF]

open access: yes, 2006
We characterize the two-site marginals of exchangeable states of a system of quantum spins in terms of a simple positivity condition. This result is used in two applications.
C Vandenplas   +7 more
core   +2 more sources

The complexity of pseudo-Kronecker and free-Kronecker forms of functions over finite fields

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2020
An approach enabling partial generalization of the Green–Sasao hierarchy for polynomial forms of Boolean functions to the case of an arbitrary finite field was introduced.
A.S. Baliuk
doaj   +1 more source

Elements of high order in finite fields specified by binomials

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
Let $F_q$ be a field with $q$ elements, where $q$ is a power of a prime number $p\geq 5$. For any integer $m\geq 2$ and $a\in F_q^*$ such that the polynomial $x^m-a$ is irreducible in $F_q[x]$, we combine two different methods to explicitly construct ...
V. Bovdi, A. Diene, R. Popovych
doaj   +1 more source

Perturbative Effective Field Theory at Finite Density [PDF]

open access: yes, 1999
An accurate description of nuclear matter starting from free-space nuclear forces has been an elusive goal. The complexity of the system makes approximations inevitable, so the challenge is to find a consistent truncation scheme with controlled errors ...
Bedaque   +28 more
core   +2 more sources

Neutrix Calculus and Finite Quantum Field Theory [PDF]

open access: yes, 2005
In general, quantum field theories (QFT) require regularizations and infinite renormalizations due to ultraviolet divergences in their loop calculations.
Bender C M   +12 more
core   +3 more sources

Finite Temperature Simulations from Quantum Field Dynamics? [PDF]

open access: yes, 2000
We describe a Hartree ensemble method to approximately solve the Heisenberg equations for the \phi^4 model in 1+1 dimensions. We compute the energies and number densities of the quantum particles described by the \phi field and find that the particles ...
Grigoriev   +3 more
core   +2 more sources

On the multiplicative order of elements in Wiedemann's towers of finite fields

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2015
We consider recursive binary finite field extensions $E_{i+1} =E_{i} (x_{i+1} )$, $i\ge -1$, defined by D. Wiedemann. The main object of the paper is to give some proper divisors of the Fermat numbers $N_{i} $ that are not equal to the multiplicative ...
R. Popovych
doaj   +1 more source

How Low Can Vacuum Energy Go When Your Fields Are Finite-Dimensional? [PDF]

open access: yes, 2019
According to the holographic bound, there is only a finite density of degrees of freedom in space when gravity is taken into account. Conventional quantum field theory does not conform to this bound, since in this framework, infinitely many degrees of ...
Cao, ChunJun   +2 more
core   +2 more sources

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