Classical and Quantum Gravity, 2005 More detailed description of the numerical implementation added and some typos corrected. Version accepted for publication in Class.
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Model of a three-qubit cluster in a thermal bath
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 This work studies a mathematical model of a quantum cluster consisting of three qubits and being in thermal equilibrium with the environment. The effective Hamiltonian is invariant under permutations of qubits and consists of two parts. The first part is
E. Andre, A.N. Tsirulev
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Hamiltonian and pseudo-Hamiltonian cycles and fillings in simplicial complexes [PDF]
Journal of Combinatorial Theory, Series B, 2021 We introduce and study a $d$-dimensional generalization of Hamiltonian cycles in graphs - the Hamiltonian $d$-cycles in $K_n^d$ (the complete simplicial $d$-complex over a vertex set of size $n$). Those are the simple $d$-cycles of a complete rank, or, equivalently, of size $1 + {{n-1} \choose d}$.
Rogers Mathew +3 more
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A First Class Constraint Generates Not a Gauge Transformation, But a Bad Physical Change: The Case of Electromagnetism [PDF]
, 2013 In Dirac-Bergmann constrained dynamics, a first-class constraint typically does not _alone_ generate a gauge transformation. By direct calculation it is found that each first-class constraint in Maxwell's theory generates a change in the electric field ...
Pitts, J. Brian, J. Brian Pitts
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The Forcing Domination Number of Hamiltonian Cubic Graphs [PDF]
, 2009 The authors presented a sequence of Hamiltonian cubic graphs whose domination numbers are sharp and in this paper we study forcing domination number for those ...
H. Abdollahzadeh Ahangar +3 more
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Torus–Connected Cycles: A Simple and Scalable Topology for Interconnection Networks
International Journal of Applied Mathematics and Computer Science, 2015 Supercomputers are today made up of hundreds of thousands of nodes. The interconnection network is responsible for connecting all these nodes to each other.
Bossard Antoine, Kaneko Keiichi
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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]
Scientific Technical ReviewIn 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
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Passivity Enforcement via Perturbation of Hamiltonian Matrices [PDF]
, 2004 This paper presents a new technique for the passivity enforcement of linear time-invariant multiport systems in statespace form. This technique is based on a study of the spectral properties of related Hamiltonian matrices.
Grivet-Talocia, S. +2 more
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On the renormalization of Hamiltonians [PDF]
Physics Letters B, 1999 We introduce a novel method for the renormalization of the Hamiltonian operator in Quantum Field Theory in the spirit of the Wilson renormalization group. By a series of unitary transformations that successively decouples the high-frequency degrees of freedom and partially diagonalizes the high-energy part, we obtain the effective Hamiltonian for the ...
Alexanian, G., Moreno, E. F.
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Energy-Storage Balanced Reduction of Port-Hamiltonian Systems [PDF]
, 2003 Supported by the framework of dissipativity theory, a procedure based on physical energy to balance and reduce port-Hamiltonian systems with collocated inputs and outputs is presented.
Fujimoto, Kenji +9 more
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