Results 141 to 150 of about 7,283,719 (303)
State diagrams to determine tree tensor network operators
SciPost Physics CoreThis work is concerned with tree tensor network operators (TTNOs) for representing quantum Hamiltonians. We first establish a mathematical framework connecting tree topologies with state diagrams. Based on these, we devise an algorithm for constructing a
Richard M. Milbradt, Qunsheng Huang, Christian B. Mendl
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Steady water waves with vorticity: spatial Hamiltonian structure
, 2013 Spatial dynamical systems are obtained for two-dimensional steady gravity waves with vorticity on water of finite depth. These systems have Hamiltonian structure and Hamiltonian is essentially the flow-force invariant.
Kuznetsov, Nikolay,, Kozlov, Vladimir,
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Advanced Science, EarlyView.This review elucidates the catalytic mechanisms of single‐atom catalysts (SACs) in accelerating lithium polysulfides redox kinetics. Subsequently, the modifications brought by asymmetric coordination chemistry and dual‐atom coordination structures in terms of geometric configuration engineering, molecular orbital hybridization, and interfacial charge ...
Peng Chen +7 more
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New strong colouring of hypergraphs
Le Matematiche, 2011 We define a new colouring for a hypergraph, in particular for a graph. Such a method is a partition of the vertex-set of a hypergraph, in particular of a graph.
Sandro Rajola, Maria Scafati Tallini
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ON THE LOCAL HAMILTONIAN STRUCTURE OF VECTOR FIELDS
Modern Physics Letters A, 1994 We derive a canonical form for smooth vector fields on ℜn+1. We use this to demonstrate the local multi-Hamiltonian nature of the corresponding flows. Associated with the canonical form is an inhomogeneous linear PDE whose solutions provide conserved measures. These can be used to construct the local Hamiltonians.
openaire +3 more sources
Infinite-Dimensional Port-Hamiltonian Systems
, 2009 This chapter presents the formulation of distributed parameter systems in terms of port-Hamiltonian system. In the first part it is shown, for different examples of physical systems defined on one-dimensional spatial domains, how the Dirac structure and
MACCHELLI, ALESSANDRO +5 more
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Advanced Science, EarlyView.An MTJ‐based probabilistic processing‐in‐memory architecture unites nonvolatile storage, local entropy generation, and stochastic computation within each memory cell. Stored multi‐bit weights are converted directly into programmable stochastic bitstreams, enabling neural‐network inference, adaptive Ising optimization, and uncertainty‐aware Bayesian ...
Qiuyuan Wang +6 more
wiley +1 more source
A critical state under weak measurement is not critical
Journal of High Energy PhysicsCritical systems host nontrivial entanglement structure that is generally sensitive to additional couplings. In the present work, we study the effect of weak measurements on the entanglement Hamiltonian of massless free fermions which are prepared in ...
Qicheng Tang, Xueda Wen
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Cr1/4NbSe2‐Single Crystal Growth and Evolution of Antiferromagnetic Correlated States
Advanced Science, EarlyView.High‐quality single crystals Cr1/4NbSe2 were synthesized and comprehensively characterized for the first time. Advanced structural, electronic, and magnetic measurements uncover a correlated antiferromagnetic state, resolving longstanding inconsistencies regarding magnetic behavior derived from earlier polycrystal studies.
Nour Abdelrahman +16 more
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Intrinsic i$i$‐Wave Altermagnetism in 2D Graphene Superlattices
Advanced Science, EarlyView.Altermagnetism has so far been mostly proposed in transition metals compounds. Here we show that monolayer and bilayer graphene antidot superlattices realize a carbon‐based i‐wave altermagnet. This is demonstrated with a combination of symmetry analysis, first principles methods and effective models, featuring a six‐fold spin splitting texture in ...
Cuiju Yu, Jose L. Lado
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