7,821 results for Computational complexity theory - Wikipedia

arxiv.org/abs/cond-mat/0302046v4

Kinetics and Boltzmann kinetic equation for fluctuation Cooper pairs

The Boltzmann equation for excess Cooper pairs above T_c is derived in the framework of the time-dependent Ginzburg-Landau (TDGL) theory using Langevin's approach of the stochastic differential equation. The Newton dynamic equation for the momentum...

arxiv.org/abs/quant-ph/9911084v3

Dynamic Rules for Decoherence

In orthodox quantum theory, decoherence is presumed to be caused by observation. In this paper, the idea of replacing observation, as the cause of decoherence, with rules derived from the dynamics of the system is addressed. Such rules determine th...

arxiv.org/abs/2008.04155v4

On the Oval Shapes of Beach Stones

This article introduces a new geophysical theory, in the form of a single simple partial integro-differential equation, to explain how frictional abrasion alone of a stone on a planar beach can lead to the oval shapes observed empirically. The underl...

arxiv.org/abs/1002.2357v2

Modular elimination in matroids and oriented matroids

We introduce a new axiomatization of matroid theory that requires the elimination property only among modular pairs of circuits, and we present a cryptomorphic phrasing thereof in terms of Crapo's axioms for flats. This new point of view leads to a c...

arxiv.org/abs/2104.01486v3

Constructions of New q-Cryptomorphisms

In the theory of classical matroids, there are several known equivalent axiomatic systems that define a matroid, which are described as matroid cryptomorphisms. A q-matroid is a q-analogue of a matroid where subspaces play the role of the subsets in...

arxiv.org/abs/cond-mat/9801224v1

A Study of the S=1/2 Alternating Chain using Multiprecision Methods

In this paper we present results for the ground state and low-lying excitations of the $S=1/2$ alternating Heisenberg antiferromagnetic chain. Our more conventional techniques include perturbation theory about the dimer limit and numerical diagonal...

arxiv.org/abs/2311.09171v2

Harada-Maxwell Static Spherically Symmetric Spacetimes

Very recently Harada has proposed a gravitational theory which is of third order in the derivatives of the metric tensor with the property that any solution of Einstein's field equations (EFEs) possibly with a cosmological constant is necessarily a s...

arxiv.org/abs/1105.1512v1

Chaos in DNA inversions (Draft paper)

This is a draft paper, proving that the inversion process that occurs in DNA mutations, is indeed chaotic as it is defined by the Devaney's theory....

arxiv.org/abs/1111.3073v1

Carthaginian Enlargement of Filtrations

This work is concerned with the theory of initial and progressive enlargements of a reference filtration F with a random time τ. We provide, under an equivalence assumption, slightly stronger than the absolute continuity assumption of Jacod, alterna...

arxiv.org/abs/1506.08876v1

Global Actions

A global action is an algebraic analogue of a topological space. It consists of group actions $G_α\curvearrowright X_α$, $(α\inΦ)$, which fulfill a certain compatibility condition. We investigate the homotopy theory of global actions. The main re...

arxiv.org/abs/2504.09304v2

Black holes with electroweak hair -- the detailed derivation

We present a very detailed derivation of solutions describing hairy black holes within the gravity-coupled Weinberg-Salam theory, which were previously reported in \href{https://doi.org/10.1103/PhysRevLett.133.171402}{Phys.Rev.Lett. 133 (2024) 171402...

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arxiv.org/abs/hep-ph/0610012v1

Tevatron-for-LHC Report of the QCD Working Group

The experiments at Run 2 of the Tevatron have each accumulated over 1 inverse femtobarn of high-transverse momentum data. Such a dataset allows for the first precision (i.e. comparisons between theory and experiment at the few percent level) tests...

arxiv.org/abs/2308.08718v2

Koszul Operads Governing Props and Wheeled Props

In this paper, we construct groupoid coloured operads governing props and wheeled props, and show they are Koszul. This is accomplished by new biased definitions for (wheeled) props, and an extension of the theory of Groebner bases for operads to app...