Publications associées à Excitons on a microscopic level: The mixed dynamic structure factor

Publications associées (27)

Ultrafast momentum-resolved visualization of the interplay between phonon-mediated scattering and plasmons in graphite

Rémi Marcel Léon Claude, Fabrizio Carbone, Thomas La Grange, Ivan Madan, Michele Puppin, Francesco Barantani, Alexey Sapozhnik, Bruce Michael Raleigh Weaver

Scattering between charges and collective modes in materials governs phenomena such as electrical resistance, energy dissipation, and phase switching. Studying such scattering requires simultaneous access to ultrafast and momentum-resolved dynamics of sing ...

2025

Single-Molecule Phosphorescence and Intersystem Crossing in a Coupled Exciton Plasmon System

Klaus Kern

American Chemical Society (ACS)2025

Magnons from time-dependent density-functional perturbation theory and nonempirical Hubbard functionals

Nicola Marzari, Luca Binci

Spin excitations play a fundamental role in understanding magnetic properties of materials, and have significant technological implications for magnonic devices. However, accurately modeling these in transition-metal and rare-earth compounds remains a form ...

2025

How to verify the precision of density-functional-theory implementations via reproducible and universal workflows

Nicola Marzari, Giovanni Pizzi, Sebastiaan Philippe Huber, Marnik Bercx, Austin Jacob Zadoks, Kristjan Eimre, Jusong Yu

Density-functional theory methods and codes adopting periodic boundary conditions are extensively used in condensed matter physics and materials science research. In 2016, their precision (how well properties computed with different codes agree among each ...

2023

Stochastic Variational Principles for Dissipative Equations with Advected Quantities

Tudor Ratiu

This paper presents symmetry reduction for material stochastic Lagrangian systems with advected quantities whose configuration space is a Lie group. Such variational principles yield deterministic as well as stochastic constrained variational principles fo ...

2023

Flexible Sensor and Readout Circuitry for Continuous Ion Sensing in Sweat

Sandro Carrara, Ata Jedari Golparvar, Ali Meimandi

In this letter, we present a custom-designed and flexible readout circuitry for the characterization of flexible and planar electrolyte-gated carbon nanotube field-effect transistor-based biosensors for ammonium detection in sweat. We employed spray-deposi ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2023

Plasma etching for fabrication of complex nanophotonic lasers from bonded InP semiconductor layers

Kirsten Emilie Moselund

Integrating optically active III-V materials on silicon/insulator platforms is one potential path towards improving the energy efficiency and performance of modern computing. Here we demonstrate the applicability of direct wafer bonding combined with plasm ...

ELSEVIER2023

A unified description of atomic physics for electron Fokker-Planck calculations

Joan Decker

Most realistic kinetic calculations for tokamak plasmas are now required to incorporate the effect of partially ionized high-Z elements arising either from uncontrolled influxes of metallic impurities, such as tungsten in high input power regimes or from m ...

IOP Publishing Ltd2023

Mechanistic Insights on Functionalization of Graphene with Ozone

Nicola Marzari, Kumar Varoon Agrawal, Shiqi Huang, Shaoxian Li, Kuang-Jung Hsu, Luc Sébastien Bondaz, Nicéphore Arthur François Bonnet

The exposure of graphene to O-3 results in functionalization of its lattice with epoxy, even at room temperature. This reaction is of fundamental interest for precise lattice patterning, however, is not well understood. Herein, using van der Waals density ...

Amer Chemical Soc2023

Performance review of the joints for the ITER poloidal field coils

Kamil Sedlák, Hugues Marie Alain Bajas

For large scale magnets wound with cable-in-conduit conductors, the safe operation of the joints is of paramount importance to guarantee adequate reliability and stability margin of the whole magnet. For this reason, during the R & D activities undertaken ...

IOP Publishing Ltd2023

Zn/P ratio and microstructure defines carrier density and electrical transport mechanism in earth-abundant Zn3-xP2+y thin films

Mihai Adrian Ionescu, Anna Fontcuberta i Morral, Simon Robert Escobar Steinvall, Mahdi Zamani, Rajrupa Paul, Mirjana Dimitrievska, Valerio Piazza, Carlotta Gastaldi, Vanessa Conti

Scalable and sustainable photovoltaic technologies require low-cost and earth-abundant semiconducting materials. Zinc phosphide is purported to be an absorber material with optimal photovoltaic properties. Herein we report the electrical properties of Zn3P ...

2023

Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory

Jan Steggemann, Konstantin Androsov, Anna Mascellani, Joanna Malgorzata Wanczyk

A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at root s = 13TeV at the LHC during 2016-2018. The data set corresponds to an integrate ...

Springer Nature2023

Sampling strategies for the Herman-Kluk propagator of the wavefunction

Fabian Kröninger, Jiri Vanicek

When the semiclassical Herman-Kluk propagator is used for evaluating quantum-mechanical observables or time-correlation functions, the initial conditions for the guiding trajectories are typically sampled from the Husimi density. Here, we employ this propa ...

2023

Many-Body Study of Iron(III)-Bound Human Serum Transferrin br

Edward Baxter Linscott

We present the very first density functional theory and dynamical meanfield theory calculations of iron-bound human serum transferrin. Peaks in the optical conductivity at250, 300, and 450 nm were observed, in line with experimental measurements. Spin mult ...

2022

Mass-zero constrained dynamics for simulations based on orbital-free density functional theory

Sara Bonella

A new algorithm for efficient and fully time-reversible integration of first-principles molecular dynamics based on orbital-free density functional theory (OFDFT) is presented. The algorithm adapts to this nontrivial case, the recently introduced Mass-Zero ...

2022

Erratum: “Unified nonlinear theory of spontaneous and forced helical resonant MHD states” [Phys. Plasmas 24, 040701 (2017)]

Joaquim Loizu Cisquella

2022

First Search for Exclusive Diphoton Production at High Mass with Tagged Protons in Proton-Proton Collisions at root s=13 TeV

Jan Steggemann

A search for exclusive two-photon production via photon exchange in proton-proton collisions, pp -> p gamma gamma p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb(-1) collected in 2016 using the CMS and TOTEM d ...

AMER PHYSICAL SOC2022

Evidence on the effects of main-chamber neutrals on density shoulder broadening

Basil Duval, Nicola Vianello, Holger Reimerdes, Christian Gabriel Theiler, Umar Sheikh, Cedric Kar-Wai Tsui, Mirko Wensing, Marcelo Baquero Ruiz, Artur Perek, Sophie Danielle Angelica Gorno

Evidence that density shoulder broadening is dependent on high main-chamber neutral density is presented. Shoulder broadening does notoccur when the sources for main-chamber neutrals are minimized using divertor baffles and wide gaps to the first wall (sim ...

2022

Leidenfrost flows: instabilities and symmetry breakings

François Gallaire

Leidenfrost drops were recently found to host strong dynamics. In the present study, we investigate both experimentally and theoretically the flow structures and stability inside a Leidenfrost water drop as it evaporates, starting with a large puddle. As r ...

CAMBRIDGE UNIV PRESS2022

Three-Dimensional Confinement of Water: H2O Exhibits Long-Range (> 50 nm) Structure while D2O Does Not

Sylvie Roke, Nathan Dupertuis, Cornelis Ulrich Lütgebaucks, Orly Bagunu Tarun

Water is the liquid of life thanks to its three-dimensional adaptive hydrogen (H)-bond network. Confinement of this network may lead to dramatic structural changes influencing chemical and physical transformations. Although confinement effects occur on a < ...

AMER CHEMICAL SOC2022