Results 61 to 70 of about 746,739 (376)

The 2-local Hamiltonian problem encompasses NP [PDF]

open access: yes, 2003
We show that the NP complete problems MAX CUT and INDEPENDENT SET can be formulated as the 2-local Hamiltonian problem as defined by Kitaev. He introduced the quantum complexity class BQNP as the quantum analog of NP, and showed that the 5-local ...
Beth, Thomas, Wocjan, Pawel
core   +2 more sources

Effective Hamiltonian for the superconducting Cu oxides.

open access: yesPhysical Review B (Condensed Matter), 1988
Although assuming that doping creates holes primarily on oxygen sites, we derive explicitly a single-band effective Hamiltonian for the high-${T}_{c}$ Cu-oxide superconductors.
Fu-Chun Zhang, T. M. Rice
semanticscholar   +1 more source

The influence of the phase transformation: Fhyd → Fe3O4, occurs during the annealing treatment of Sol-Gel synthesis, on the absorption properties of the final synthesis product: Fe3O4/C hollow-sphere nanoparticles [PDF]

open access: yesScientific Technical Review
In this paper, we perform a theoretical study of the possible improvement of the absorption properties ( ) of the sample consisting of Fe3O4/C hollow sphere nanoparticles, prepared by sol-gel method.
Nikolić Violeta   +2 more
doaj   +1 more source

Effective Hamiltonians and Averaging¶for Hamiltonian Dynamics II [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2001
This paper, building upon ideas of Mather, Moser, Fathi, E and others, applies PDE (partial differential equation) methods to understand the structure of certain Hamiltonian flows. The main point is that the “cell” or “corrector” PDE, introduced and solved in a weak sense by Lions, Papanicolaou and Varadhan in their study of periodic homogenization for
Lawrence C. Evans, Diogo A. Gomes
openaire   +2 more sources

Hamiltonian description of a self-consistent interaction between charged particles and electromagnetic waves [PDF]

open access: yes, 2008
The Hamiltonian description of the self-consistent interaction between an electromagnetic plane-wave and a co-propagating beam of charged particles is considered.
Bachelard, Romain   +2 more
core   +2 more sources

An Improved Fault Diagnosis Algorithm for Highly Scalable Data Center Networks

open access: yesMathematics
Fault detection and localization are vital for ensuring the stability of data center networks (DCNs). Specifically, adaptive fault diagnosis is deemed a fundamental technology in achieving the fault tolerance of systems.
Wanling Lin   +3 more
doaj   +1 more source

Disorder Solutions for Generalized Ising Model with Multispin Interaction

open access: yesСовременные информационные технологии и IT-образование, 2019
This study demonstrates a development of convenient formulae for obtaining the value of the free energy in the thermodynamic limit on a set of exact disorder solutions depending on four parameters for a 2D generalized Ising model in an external magnetic ...
Pavel V. Khrapov
doaj   +1 more source

Determining a local Hamiltonian from a single eigenstate [PDF]

open access: yesQuantum, 2017
We ask whether the knowledge of a single eigenstate of a local Hamiltonian is sufficient to uniquely determine the Hamiltonian. We present evidence that the answer is ``yes" for generic local Hamiltonians, given either the ground state or an excited ...
X. Qi, Daniel Ranard
semanticscholar   +1 more source

On k-Path Pancyclic Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2015
For integers k and n with 2 ≤ k ≤ n − 1, a graph G of order n is k-path pancyclic if every path P of order k in G lies on a cycle of every length from k + 1 to n. Thus a 2-path pancyclic graph is edge-pancyclic.
Bi Zhenming, Zhang Ping
doaj   +1 more source

BV quantization of covariant (polysymplectic) Hamiltonian field theory

open access: yes, 2004
Covariant (polysymplectic)Hamiltonian field theory is the Hamiltonian counterpart of classical Lagrangian field theory. They are quasi-equivalent in the case of almost-regular Lagrangians. This work addresses BV quantization of polysymplectic Hamiltonian
Barnish G.   +5 more
core   +1 more source

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