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math-ph2015★ 5 cited

Exact quantisation of the relativistic Hopfield model

F. Belgiorno, S. L. Cacciatori, F. Dalla Piazza +1

We investigate the quantisation in the Heisenberg representation of a relativistically covariant version of the Hopfield model for dielectric media, which entails the interaction o…

nucl-ex2015★ 4 cited

Shedding New Light on Kaon-Nucleon/Nuclei Interaction and Its Astrophysical Implications with the AMADEUS Experiment at DAFNE

A. Scordo, M. Bazzi, G. Bellotti +24

The AMADEUS experiment deals with the investigation of the low-energy kaon-nuclei hadronic interaction at the DAΦNE collider at LNF-INFN, which is fundamental to respond longstandi…

physics.optics2015★ 7 cited

Design of a hybrid silicon-plasmonic co-propagant integrated coherent perfect absorber

Simone Zanotto, Andrea Melloni

By a hybrid integration of plasmonic and dielectric waveguide concepts, it is shown that coherent perfect absorption can be achieved in a co-propagant coupler geometry. The device…

quant-ph2015★ 144 cited

Thermally-Reconfigurable Quantum Photonic Circuits at Telecom Wavelength by Femtosecond Laser Micromachining

Fulvio Flamini, Lorenzo Magrini, Adil S. Rab +8

The importance of integrated quantum photonics in the telecom band resides on the possibility of interfacing with the optical network infrastructure developed for classical communi…

cs.LG2015★ 1 cited

Decoding Hidden Markov Models Faster Than Viterbi Via Online Matrix-Vector (max, +)-Multiplication

Massimo Cairo, Gabriele Farina, Romeo Rizzi

In this paper, we present a novel algorithm for the maximum a posteriori decoding (MAPD) of time-homogeneous Hidden Markov Models (HMM), improving the worst-case running time of th…

stat.ME2015★ 181 cited

Functional Data Analysis of Amplitude and Phase Variation

J. S. Marron, James O. Ramsay, Laura M. Sangalli +1

The abundance of functional observations in scientific endeavors has led to a significant development in tools for functional data analysis (FDA). This kind of data comes with seve…

cs.NI2015

SPIDER: Fault Resilient SDN Pipeline with Recovery Delay Guarantees

Carmelo Cascone, Luca Pollini, Davide Sanvito +2

When dealing with node or link failures in Software Defined Networking (SDN), the network capability to establish an alternative path depends on controller reachability and on the…

quant-ph2015★ 78 cited

An Integrated Optical Memory based on Laser Written Waveguides

Giacomo Corrielli, Alessandro Seri, Margherita Mazzera +2

We report on the first realization of an integrated optical memory for light based on a laser written waveguide in a doped crystal. Using femto-second laser micromachining, we fabr…

cs.NI2015★ 1 cited

Cost-Efficient Data Backup for Data Center Networks against ε-Time Early Warning Disaster

Lisheng Ma, Xiaohong Jiang, Bin Wu +3

Data backup in data center networks (DCNs) is critical to minimize the data loss under disaster. This paper considers the cost-efficient data backup for DCNs against a disaster wit…

physics.flu-dyn2015★ 139 cited

Reynolds-dependence of turbulent skin-friction drag reduction induced by spanwise forcing

Davide Gatti, Maurizio Quadrio

This paper examines how increasing the value of the Reynolds number affects the ability of spanwise-forcing techniques to yield turbulent skin-friction drag reduction. The con…

physics.ins-det2015★ 227 cited

All-optical mode unscrambling on a silicon photonic chip

Andrea Annoni, Emanuele Guglielmi, Marco Carminati +5

Propagation of light beams through scattering or multimode systems may lead to randomization of the spatial coherence of the light. Although information is not lost, its recovery r…

math.AP2015

Bifurcation and segregation in quadratic two-populations Mean Field Games systems

Marco Cirant, Gianmaria Verzini

We search for non-constant normalized solutions to the semilinear elliptic system \[ \begin{cases} - νΔv_i + g_i(v_j^2) v_i = λ_i v_i,\quad v_i>0 & \text{in } \\ \partial_n v_i…

quant-ph2015★ 22 cited

Quantum state transfer via Bloch oscillations

Dario Tamascelli, Stefano Olivares, Stefano Rossotti +2

The realization of reliable quantum channels, able to transfer a quantum state with high fidelity, is a fundamental step in the construction of scalable quantum devices. In this pa…

math.AP2015★ 2 cited

Elliptic and parabolic equations with Dirichlet conditions at infinity on Riemannian manifolds

Paolo Mastrolia, Dario D. Monticelli, Fabio Punzo

We investigate existence and uniqueness of bounded solutions of parabolic equations with unbounded coefficients in , where is a complete noncompact Riemann…

cs.CE2015

Modeling of anechoich chambers with equivalent materials and equivalent sources

Silvano Chialina, Matteo Cicuttin, Lorenzo Codecasa +3

Numerical simulation of anechoic chambers is a hot topic since it can provide useful data about the performance of the EMC site. However, the mathematical nature of the problem, th…

math.CV2015★ 3 cited

Adaptive orthonormal systems for matrix-valued functions

D. Alpay, F. Colombo, T. Qian +1

In this paper we consider functions in the Hardy space defined in the unit disc of matrix-valued. We show that it is possible, as in the scalar case, to…

math.FA2015★ 14 cited

Schatten class and Berezin transform of quaternionic linear operators

Fabrizio Colombo, Jonathan Gantner, Tim Janssens

In this paper we introduce the Schatten class of operators and the Berezin transform of operators in the quaternionic setting. The first topic is of great importance in operator th…

physics.ins-det2015★ 22 cited

Fuel burnup analysis of the TRIGA Mark II Reactor at the University of Pavia

Davide Chiesa, Massimiliano Clemenza, Stefano Pozzi +10

A time evolution model was developed to study fuel burnup for the TRIGA Mark II reactor at the University of Pavia. The results were used to predict the effects of a complete core…

math-ph2015★ 3 cited

The mathematics of superoscillations

Y. Aharonov, F. Colombo, I. Sabadini +2

In the past 50 years, quantum physicists have discovered, and experimentally demonstrated, a phenomenon which they termed superoscillations. Aharonov and his collaborators showed t…

stat.ME2015

Generalized Spatial Regression with Differential Regularization

Matthieu Wilhelm, Laura M. Sangalli

We aim at analyzing geostatistical and areal data observed over irregularly shaped spatial domains and having a distribution within the exponential family. We propose a generalized…

physics.optics2015★ 3 cited

Transparency in nonlinear frequency conversion

Stefano Longhi

Suppression of wave scattering and the realization of transparency effects in engineered optical media and surfaces have attracted great attention in the past recent years. In this…

cond-mat.mtrl-sci2015★ 13 cited

Spin-dependent direct gap emission in tensile-strained Ge films on Si substrates

E. Vitiello, M. Virgilio, A. Giorgioni +7

The circular polarization of direct gap emission of Ge is studied in optically-excited tensile-strained Ge-on-Si heterostructures as a function of doping and temperature. Owing to…

physics.optics2015★ 50 cited

Half-spectral unidirectional invisibility in non-Hermitian periodic optical structures

Stefano Longhi

The phenomenon of half-spectral unidirectional invisibility is introduced for one-dimensional periodic optical structures with tailored real and imaginary refractive index distribu…

math.NA2015★ 1 cited

Monotonicity, positivity and strong stability of the TR-BDF2 method and of its SSP extensions

Luca Bonaventura, Alessandro Della Rocca

We analyze the one-step method TR-BDF2 from the point of view of monotonicity, strong stability and positivity. All these properties are strongly related and reviewed in the common…