Elisa Londero

An Edge Computing-Oriented WoT Architecture for Air Quality Monitoring in Mobile Vehicular Scenarios

Luca Davoli, Laura Belli, Gianluigi Ferrari, Elisa Londero et autres

Nowadays, the need to efficiently process information in Internet of Things (IoT)-oriented heterogeneous scenarios has increased significantly, e.g., in all scenarios where unobtrusive environmental monitoring is beneficial for the involved people (e.g., inside public transport vehicles, indoor workplaces and offices, large public …

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Distributed Smart Measurement Architecture for Industrial Automation

Paolo Azzoni, Gianfranco Caminale, Marco Carratù, Salvatore Dello Iacono et autres

Cyber-Physical Systems (CPSs) employed for Industrial Automation often require the adoption of a hybrid data processing approach mediating between cloud, edge, and fog computing paradigms. Nowadays, it is possible to shift data pre-processing capabilities closer to data sensing to collect environmental measurements …

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Asiago Astronomical Archive: Status and Features

Elisa Londero, Sonia Zorba, M. Molinaro, C. Knapic et autres

Vibrational modes of negatively charged silicon-vacancy centers in diamond from ab initio calculations

Elisa Londero, Gergő Thiering, Lukas Razinkovas, Ádám Gali et autres

Silicon-vacancy (SiV) center in diamond is a photoluminescence (PL) center with a characteristic zero-phonon line energy at 1.681 eV that acts as a solid-state single-photon source and, potentially, as a quantum bit. The majority of the luminescence intensity appears in the zero-phonon …

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Identification of nickel-vacancy defects by combining experimental and ab initio simulated photocurrent spectra

Elisa Londero, Emilie Bourgeois, Miloš Nesládek, Ádám Gali

There is a continuous search for solid state spin qubits operating at room temperature with excitation in the infrared communication bandwidth. Recently, we have introduced the photoelectric detection of magnetic resonance (PDMR) to read the electron spin state of nitrogen-vacancy (NV) centers …

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Ab initio theory of the N2V defect in diamond for quantum memory implementation

Péter Udvarhelyi, Gergő Thiering, Elisa Londero, Ádám Gali

The ${\text{N}}_{2}\mathrm{V}$ defect in diamond is characterized by means of ab initio methods relying on density functional theory calculated parameters of a Hubbard model Hamiltonian. It is shown that this approach appropriately describes the energy levels of correlated excited states induced by …

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Enhanced photoelectric detection of NV magnetic resonances in diamond under dual-beam excitation

Emilie Bourgeois, Elisa Londero, K. Buczak, Jaroslav Hrubý et autres

The core issue for the implementation of NV center qubit technology is a sensitive readout of the NV spin state. We present here a detailed theoretical and experimental study of NV center photoionization processes, used as a basis for the design of …

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\emph{Ab initio} study on the Herzberg-Teller effect in the optical excitation spectrum of silicon-vacancy center in diamond

Elisa Londero, Gergő Thiering, Monika Bijeikytė, Jeromino R. Maze et autres

Understanding optical excitation spectra of point defects is still a scientific challenge. We demonstrate by \emph{ab initio} calculations that a prominent sharp feature in the photoluminescence (PL) spectrum of the negatively charged silicon-vacancy defect in diamond can be only explained within the …

Single nickel-related defects in molecular-sized nanodiamonds for multicolor bioimaging: an ab initio study

Gergő Thiering, Elisa Londero, Ádám Gali

Fluorescent nanodiamonds constitute an outstanding alternative to semiconductor quantum dots and dye molecules for in vivo biomarker applications, where the fluorescence comes from optically active point defects acting as color centers in the nanodiamonds. For practical purposes, these color centers should be …

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Harris-type van der Waals density functional scheme

Kristian Berland, Elisa Londero, Elsebeth Schröder, Per Hyldgaard

Biomolecular systems that involve thousands of atoms are difficult to address with standard density functional theory (DFT) calculations. With the development of sparse-matter methods such as the van der Waals density functional (vdW-DF) method [M. Dion et al., Phys. Rev. Lett. 92, …

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A van der Waals density functional mapping of attraction in DNA dimers

Elisa Londero, Per Hyldgaard, Elsebeth Schröder

The dispersion interaction between a pair of parallel DNA double-helix structures is investigated by means of the van der Waals density functional (vdW-DF) method. Each double-helix structure consists of an infinite repetition of one B-DNA coil with 10 base pairs. This parameter-free …

Desorption of n-alkanes from graphene: a van der Waals density functional study

Elisa Londero, Emma Karlson, Marcus Landahl, Dimitri Ostrovskii et autres

A recent study of temperature-programmed desorption (TPD) measurements of small linear alkane molecules (n-alkanes, with formula C(N)H(2N+2)) from C(0001) deposited on Pt(111) shows a linear relationship of the desorption energy with increasing n-alkane chain length N. We here present a van der …

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