Results 111 to 120 of about 228,440 (334)

A New Perspective on Path Integral Quantum Mechanics in Curved Space-Time

open access: yesEPJ Web of Conferences, 2013
. A new approach to path integral quantum mechanics in curved space-time is presented for scalar particle propagation, expressed in terms of Lie transport and Fermi or Riemann normal co-ordinates to describe local curvature.
Singh Dinesh, Mobed Nader
doaj   +1 more source

Accelerated Discovery of Topological Conductors for Nanoscale Interconnects

open access: yesAdvanced Science, EarlyView.
Copper interconnects exhibit a sharp increase in resistivity at ultra‐scaled dimensions, threatening continued miniaturization of integrated circuits. The gapless surface states of topological semimetals provide conduction channels resistant to localization.
Alexander C. Tyner   +7 more
wiley   +1 more source

Global conformal blocks via shadow formalism

open access: yesJournal of High Energy Physics
We study 𝔰𝔩2 and 𝔰𝔩3 global conformal blocks on a sphere and a torus, using the shadow formalism. These blocks arise in the context of Virasoro and 𝒲3 conformal field theories in the large central charge limit.
Vladimir Belavin, J. Ramos Cabezas
doaj   +1 more source

Measuring the deviation from the superposition principle in interference experiments

open access: yesNew Journal of Physics, 2018
The Feynman path integral formalism has long been used for calculations of probability amplitudes. Over the last few years, it has been extensively used to theoretically demonstrate that the usual application of the superposition principle in slit based ...
G Rengaraj   +4 more
doaj   +1 more source

Probing Ultrastrong Through‐Space Electronic Coupling in Donor‐Acceptor Systems at the Single‐Molecule Level

open access: yesAdvanced Science, EarlyView.
A series of through‐space coupled donor‐acceptor (D–A) molecules is sandwiched between two electrodes to determine their single‐molecule conductance. As the D–A interaction weakens, single‐molecule conductance reduces while Flicker Noise PSD n‐value increases (coupling strength decreases).
Xin Wang   +10 more
wiley   +1 more source

Unravelling AdS3/CFT2 near the boundary

open access: yesJournal of High Energy Physics
We study correlation functions of spectrally-flowed vertex operators in bosonic string theory on AdS3 × 𝑋 in the path integral formalism. By restricting the path integral to only include worldsheets which live near the asymptotic boundary, we compute ...
Bob Knighton, Vit Sriprachyakul
doaj   +1 more source

Emerging of Anomalous Higher‐Order Topological Phases in Altermagnet/Topological Insulator Heterostructure by Floquet Engineering

open access: yesAdvanced Science, EarlyView.
We combine altermagnet with topological insulators and subject the structure to Floquet driving. This breaks time‐reversal symmetry and creates a new type of higher‐order topological insulator. Its key feature is the emergence of programmable “0/π‐corner modes” that can be controlled by magnetic field direction, offering a novel dynamic platform for ...
Donghao Wang   +4 more
wiley   +1 more source

A solution of 3D Helmholtz equation for boundary geometry modeled by Coons patches using the Parametric Integral Equation System

open access: yesArchives of Acoustics, 2014
In this paper, the authors propose an algorithm for numerical solution of the 3D Helmholtz equation using the Parametric Integral Equation System (PIES). The PIES, unlike the traditional Boundary Integral Equation (BIE), is characterized by the fact that
E. ZIENIUK, K. SZERSZEŃ
doaj  

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