Matteo Vandelli
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High-expressibility Quantum Neural Networks using only classical resources Open
Quantum neural networks (QNNs), as currently formulated, are near-term quantum machine learning architectures that leverage parameterized quantum circuits with the aim of improving upon the performance of their classical counterparts. In t…
Parallel splitting method for large-scale quadratic programs Open
Current algorithms for large-scale industrial optimization problems typically face a trade-off: they either require exponential time to reach optimal solutions, or employ problem-specific heuristics. To overcome these limitations, we intro…
Testing Quantum and Simulated Annealers on the Drone Delivery Packing Problem Open
Using drones to perform human-related tasks can play a key role in various fields, such as defense, disaster response, agriculture, healthcare, and many others. The drone delivery packing problem (DDPP) arises in the context of logistics i…
Doping-dependent charge- and spin-density wave orderings in a monolayer of Pb adatoms on Si(111) Open
In this work we computed the phase diagram as a function of temperature and doping for a system of lead adatoms allocated periodically on a silicon (111) surface. This Si(111):Pb material is characterized by a strong and long-ranged Coulom…
Evaluating the Practicality of Quantum Optimization Algorithms for Prototypical Industrial Applications Open
The optimization of the power consumption of antenna networks is a problem with a potential impact in the field of telecommunications. In this work, we investigate the application of the quantum approximate optimization algorithm (QAOA) an…
Charge Density Wave Ordering in NdNiO$_2$: Effects of Multiorbital Nonlocal Correlations Open
In this work, we investigate collective electronic fluctuations and, in particular, the possibility of the charge density wave ordering in an infinite-layer NdNiO$_2$. We perform advanced many-body calculations for the ab-initio three-orbi…
View article: Extended regime of metastable metallic and insulating phases in a two-orbital electronic system
Extended regime of metastable metallic and insulating phases in a two-orbital electronic system Open
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Doping-dependent charge- and spin-density wave orderings in a monolayer of Pb adatoms on Si(111) Open
In this work we computed the phase diagram as a function of temperature and doping for a system of lead adatoms allocated periodically on a silicon (111) surface. This Si(111):Pb material is characterized by a strong and long-ranged Coulom…
View article: Multi-band D-TRILEX approach to materials with strong electronic correlations
Multi-band D-TRILEX approach to materials with strong electronic correlations Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation. This method is designed for a self-consistent description of multi-orbital sy…
View article: Multi-band D-TRILEX approach to materials with strong electronic correlations
Multi-band D-TRILEX approach to materials with strong electronic correlations Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation. This method is designed for a self-consistent description of multi-orbital sy…
View article: Report on 2204.06426v3
Report on 2204.06426v3 Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation.This method is designed for a self-consistent description of multi-orbital sys…
View article: Report on 2204.06426v2
Report on 2204.06426v2 Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation.This method is designed for a self-consistent description of multi-orbital sys…
View article: Report on 2204.06426v2
Report on 2204.06426v2 Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation.This method is designed for a self-consistent description of multi-orbital sys…
View article: Report on 2204.06426v1
Report on 2204.06426v1 Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation.This method is designed for a self-consistent description of multi-orbital sys…
View article: Report on 2204.06426v1
Report on 2204.06426v1 Open
We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical implementation.This method is designed for a self-consistent description of multi-orbital sys…
View article: Dual boson diagrammatic Monte Carlo approach applied to the extended Hubbard model
Dual boson diagrammatic Monte Carlo approach applied to the extended Hubbard model Open
In this work we introduce the Dual Boson Diagrammatic Monte Carlo technique\nfor strongly interacting electronic systems. This method combines the strength\nof dynamical mean-filed theory for non-perturbative description of local\ncorrelat…
Direct Observation of Incommensurate–Commensurate Transition in Graphene-hBN Heterostructures via Optical Second Harmonic Generation Open
Commensurability effects play a crucial role in the formation of electronic properties of novel layered heterostructures. The interest in these moiré superstructures has increased tremendously since the recent observation of a superconduct…
Resonant optical second harmonic generation in graphene-based heterostructures Open
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