Results 81 to 90 of about 116,934 (311)

Lumped Approximation of a Transmission Line with an Alternative Geometric Discretization [PDF]

, 2004
An electromagnetic one-dimensional transmission line represented in a distributed port-Hamiltonian form is lumped into a chain of subsystems which preserve the port-Hamiltonian structure with inputs and outputs in collocated form.
Scherpen, Jacquelien M.A.,, Lopezlena, Ricardo, Scherpen, Jacquelien M.A., Lopezlena, Ricardo,   +3 more
core  

Sampled Data Systems Passivity and Discrete Port-Hamiltonian Systems [PDF]

, 2005
In this paper, we present a novel way to approach the interconnection of a continuous and a discrete time physical system. This is done in a way which preserves passivity of the coupled system independently of the sampling time T.
van der Schaft, Arjan, S. Stramigioli, Schaft, Arjan J. van der,, Schaft, Arjan J. van der; id_orcid, Secchi, Cristian,, Fantuzzi, Cesare,, Stramigioli, Stefano; id_orcid, SECCHI, Cristian, Stramigioli, Stefano,, AJ Van der Schaft, Schaft, Arjan J. van der, FANTUZZI, Cesare, Stramigioli, Stefano   +12 more
core   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Anomalous value of the g-factor of localized iron centers in the Al2[SiO4] lattice with strong tetragonal distortion

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020
The results of theoretical and experimental studies of the electron paramagnetic resonance (EPR) spectra of iron impurity centers in the Al2[SiO4] lattice are presented. Characteristic defects of the system have been found to lead to the appearance of
Apushkinskiy Evgeniy, Popov Boris, Saveliev Vladimir, Sobolevskiy Vladimir, Krukovskaya Lidia   +4 more
doaj   +1 more source

Hamiltonian of a flux qubit-LC oscillator circuit in the deep–strong-coupling regime

Scientific Reports, 2022
We derive the Hamiltonian of a superconducting circuit that comprises a single-Josephson-junction flux qubit inductively coupled to an LC oscillator, and we compare the derived circuit Hamiltonian with the quantum Rabi Hamiltonian, which describes a two ...
F. Yoshihara, S. Ashhab, T. Fuse, M. Bamba, K. Semba   +4 more
doaj   +1 more source

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

Advanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang, Grant Z. X. Yang, Zi‐Ting Sun, Xinhou Chen, Shishun Zhao, Chufan Chen, Chenhui Zhang, Fanrui Hu, K. T. Law, Hyunsoo Yang   +9 more
wiley   +1 more source

Decompositions and packings in truncated triangulations

Electronic Journal of Graph Theory and Applications
We study decompositions and packings in truncated triangulations GT△ obtained from simple connected plane graphs G with minimum degree two. We show GT△ is a 3-connected cubic planar graph with at least 2|E(G)|² - 2|E(G)| + 1 perfect matchings, a Λ-factor,
Michael Muzheve
doaj   +1 more source

Inverse Design of Amorphous Materials With Targeted Properties

Advanced Materials, EarlyView.
AMDEN is a diffusion model framework for the inverse design of amorphous materials with targeted properties. By incorporating Hamiltonian Monte Carlo refinement into the denoising process, the framework overcomes the challenge of generating thermally relaxed disordered structures.
Jonas A. Finkler, Yan Lin, Tao Du, Jilin Hu, Morten M. Smedskjaer   +4 more
wiley   +1 more source

On the Curvature and Heat Flow on Hamiltonian Systems

Analysis and Geometry in Metric Spaces, 2014
We develop the differential geometric and geometric analytic studies of Hamiltonian systems. Key ingredients are the curvature operator, the weighted Laplacian, and the associated Riccati equation.We prove appropriate generalizations of the Bochner ...
Ohta Shin-ichi
doaj   +1 more source

On the Hamiltonian index

Discrete Mathematics, 1988
The author defines h(G) as the smallest number m such that the m times iterated line graph has a Hamiltonian cycle and \(\ell (G)\) as the largest number k such that G has a path of length k which is not part of a \(K_ 3\) and whose internal vertices all have degree 2 in G.
openaire   +1 more source