Results 81 to 90 of about 14,019 (244)

Holographic maps of quasiparticle interference [PDF]

open access: yesNature Physics, 2016
The analysis of Fourier-transformed scanning-tunneling-microscopy (STM) images with subatomic resolution is a common tool for studying properties of quasiparticle excitations in strongly correlated materials. While Fourier amplitudes are generally complex valued, earlier analysis mostly considered only their absolute values.
Torre, Emanuele G. Dalla   +2 more
openaire   +2 more sources

Fractional Laplasians and propagation of waves in three-dimensional space as quantum process

open access: yesФизика волновых процессов и радиотехнические системы, 2016
In this paper it is shown that in the whole range of problems of waves propagation there is hidden feynmanon. We call by feynmanon the quantum object moving along fractal trajectories in phase space of dynamical system related with wave equation ...
A.A. Potapov, A.E. Rassadin
doaj  

Quasiparticle Dynamics in Niobium Nitride Superconducting Microwave Resonators at Single-Photon Regime

open access: yesIEEE Transactions on Quantum Engineering
Reliable operation of superconducting quantum circuits demands effective control over quasiparticles, which introduce energy distributions below the superconducting gap and act as a dominant source of decoherence.
Paniz Foshat   +9 more
doaj   +1 more source

Quasiparticle theory of collective electron excitations in graphene [PDF]

open access: yesAPL Electronic Devices
In this paper, we develop a new approach for analyzing collective quantum excitations in graphene, based on the quantum multistream model. We explore a range of phenomena, including the energy band structure of collective modes, linear and nonlinear ...
M. Akbari-Moghanjoughi
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Charge structure of a quasiparticle in graphite measured with inelastic X-ray scattering

open access: yes, 2009
"The following work consists of three related topics. First, we demonstrate a multi-dimensional, attosecond-resolution, real-space electron density imaging technique. We apply the technique to the energy-loss spectra of graphite, which we measured using
Reed, James P.
core  

Feynman integrals as connecting component between radio еngineering, fractal paradigm and quantum mechanics

open access: yesФизика волновых процессов и радиотехнические системы, 2015
Analysing Feynman integral for one-dimensional harmonic oscillator we have found that it is possible to introduce quasiparticle of radio systems. This quasiparticle we have called radion.
A.A. Potapov, A.E. Rassadin
doaj  

Persistent oscillations after quantum quenches: The inhomogeneous case

open access: yesNuclear Physics B, 2020
We previously showed that a quantum quench in a one-dimensional translation invariant system produces undamped oscillations of a local observable when the post-quench state includes a single-quasiparticle mode and the observable couples to that mode [J ...
Gesualdo Delfino
doaj   +1 more source

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

open access: yesAdvanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park   +19 more
wiley   +1 more source

Long‐Range Interactions in Topological Superconducting Systems: A Mini Review

open access: yesAdvanced Physics Research, EarlyView.
Long‐range interacting quantum systems are surveyed in this review, with an emphasis on the long‐range topological superconductor and its variants. Long‐range interactions decaying in a power‐law manner can lead to exotic phenomena that finds no analogue in short‐range regimes.
Juntong Ren, Haifeng Lü
wiley   +1 more source

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