Angelo Bassi
A5013178551- Quantum Mechanics and Applications
- Quantum Information and Cryptography
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Advanced Thermodynamics and Statistical Mechanics
- Mechanical and Optical Resonators
- Biofield Effects and Biophysics
- Cold Atom Physics and Bose-Einstein Condensates
- Radioactive Decay and Measurement Techniques
- Quantum Computing Algorithms and Architecture
- Statistical Mechanics and Entropy
- Spectroscopy and Quantum Chemical Studies
- Quantum Electrodynamics and Casimir Effect
- Atomic and Subatomic Physics Research
- Noncommutative and Quantum Gravity Theories
- Cosmology and Gravitation Theories
- Philosophy and History of Science
- Nuclear reactor physics and engineering
- Quantum optics and atomic interactions
- Neural Networks and Reservoir Computing
- Advanced Frequency and Time Standards
- History and advancements in chemistry
- Dark Matter and Cosmic Phenomena
- Quantum, superfluid, helium dynamics
University of Trieste
2015-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2015-2024
Goethe University Frankfurt
1920-2024
Istituto Nazionale di Fisica Nucleare
2004-2024
Scuola Internazionale Superiore di Studi Avanzati
2024
Leibniz University Hannover
2024
Queen's University Belfast
2023
Instituto de Óptica "Daza de Valdés"
2022
Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
2017
Tata Institute of Fundamental Research
2012
Quantum mechanics is an extremely successful theory that agrees with every experiment. However, the principle of linear superposition, a central tenet theory, apparently contradicts commonplace observation: macroscopic objects are never found in superposition position states. Moreover, does not really explain as to why during quantum measurement, deterministic evolution replaced by probabilistic evolution, whose random outcomes obey Born probability rule. In this article we review...
Abstract We propose in this White Paper a concept for space experiment using cold atoms to search ultra-light dark matter, and detect gravitational waves the frequency range between most sensitive ranges of LISA terrestrial LIGO/Virgo/KAGRA/INDIGO experiments. This interdisciplinary experiment, called Atomic Experiment Dark Matter Gravity Exploration (AEDGE), will also complement other planned searches exploit synergies with wave detectors. give examples extended sensitivity matter offered...
Abstract One of the key challenges for nuclear physics today is to understand from first principles effective interaction between hadrons with different quark content. First successes have been achieved using techniques that solve dynamics quarks and gluons on discrete space-time lattices 1,2 . Experimentally, strong studied by scattering off each other. Such experiments are difficult or impossible unstable 3–6 so high-quality measurements exist only containing up down 7 Here we demonstrate...
Advances in quantum technologies are giving rise to a revolution the way fundamental physics questions explored at empirical level. At same time, they seeds for future disruptive technological applications of physics. Remarkably, space-based environment may open many new avenues exploring and employing technologies. Recently, space missions or applied studies have been proposed implemented with stunning results. The combination its application is focus this review: we cover both scientific...
Abstract A Large Ion Collider Experiment (ALICE) has been conceived and constructed as a heavy-ion experiment at the LHC. During LHC Runs 1 2, it produced wide range of physics results using all collision systems available In order to best exploit new opportunities opening up with upgraded detector technologies, undergone major upgrade during Long Shutdown 2 (2019–2022). This comprises move continuous readout, complete overhaul core detectors, well online event processing farm redesigned...
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around world to discuss exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter gravitational waves. primary objective was lay groundwork an international TVLBAI proto-collaboration. collaboration aims unite researchers different institutions strategize...
The necessity of quantising the gravitational field is still subject to an open debate.In this paper we compare approach quantum gravity, with that a fundamentally semiclassical theory in weak-field non-relativistic limit.We show that, while former case Schrödinger equation stays linear, latter one ends up so-called Schrödinger-Newton equation, which involves nonlinear, non-local contribution.We further discuss does not describe collapse wave-function, although it was initially proposed for...
We discuss effects of loss coherence in low energy quantum systems caused by or related to gravitation, referred as gravitational decoherence.These effects, resulting from random metric fluctuations, for instance, promise be accessible relatively inexpensive table-top experiments, way before the scales where true gravity become important.Therefore, they can provide a first experimental view on regime.We will survey models decoherence induced both classical and fluctuations; it manifest that...
Wave function collapse models postulate a fundamental breakdown of the quantum superposition principle at macroscale. Therefore, experimental tests are also mechanics. Here, we compute upper bounds on parameters, which can be inferred by gravitational wave detectors LIGO, LISA Pathfinder, and AURIGA. We consider most widely used model, continuous spontaneous localization (CSL) model. show that these experiments exclude huge portion CSL parameter space, strongest bound being set recently...
Future experiments may tell us if quantum mechanics is an approximation to a deeper-level theory.
Collapse models predict a tiny violation of energy conservation, as consequence the spontaneous collapse wave function. This property allows us to set experimental bounds on their parameters. We consider an ultrasoft magnetically tipped nanocantilever cooled millikelvin temperature. The thermal noise cantilever fundamental mode has been accurately estimated in range 0.03--1 K, and any other excess is found be negligible within uncertainty. From measured data geometry, we estimate upper bound...
Spontaneous collapse models predict that a weak force noise acts on any mechanical system, as consequence of the wave function. Significant upper limits rate have been recently inferred from precision experiments, such ultracold cantilevers and space mission LISA Pathfinder. Here, we report new results an experiment based high-Q cantilever cooled to millikelvin temperatures, which is potentially able improve current bounds continuous spontaneous localization (CSL) model by 1 order magnitude....
The test of modifications to quantum mechanics aimed at identifying the fundamental reasons behind unobservability mechanical superpositions macroscale is a crucial goal modern mechanics. Within context collapse models, current proposals based on interferometric techniques for their falsification are far from experimental state art. Here we discuss an alternative approach testing models that, by bypassing need preparation superposition states might help us addressing nonlinear stochastic...
Do the laws of quantum physics still hold for macroscopic objects - this is at heart Schrödinger's cat paradox or do gravitation yet unknown effects set a limit massive particles? What fundamental relation between and gravity? Ground-based experiments addressing these questions may soon face limitations due to limited free-fall times quality vacuum microgravity. The proposed mission Macroscopic Quantum Resonators (MAQRO) overcome allow such questions. MAQRO harnesses recent developments in...
The first measurement at the LHC of charge-dependent directed flow (${v}_{1}$) relative to spectator plane is presented for Pb-Pb collisions $\sqrt{{s}_{\mathrm{NN}}}=5.02\text{ }\text{ }\mathrm{TeV}$. Results are reported charged hadrons and ${\mathrm{D}}^{0}$ mesons transverse momentum intervals ${p}_{\mathrm{T}}>0.2\text{ }\mathrm{GeV}/c$ $3<{p}_{\mathrm{T}}<6\text{ in 5%--40% 10%--40% centrality classes, respectively. difference between positively negatively hadron ${v}_{1}$ has a...
What gravitational field is generated by a massive quantum system in spatial superposition? Despite decades of intensive theoretical and experimental research, we still do not know the answer. On side, difficulty lies fact that gravity weak requires large masses to be detectable. However, it becomes increasingly difficult generate superpositions for masses, light stronger environmental effects on such systems. Clearly, delicate balance between need strong decoherence should found. We show...
Despite the unquestionable empirical success of quantum theory, witnessed by recent uprising technologies, debate on how to reconcile theory with macroscopic classical world is still open. Spontaneous collapse models are one few testable solutions so far proposed. In particular, continuous spontaneous localization (CSL) model has become subject intense experimental research. Experiments looking for universal force noise predicted CSL in ultrasensitive mechanical resonators have recently set...
This Letter presents the first experimental evidence of attractive strong interaction between a proton and ϕ meson. The result is obtained from two-particle correlations combined p-ϕ⊕ p[over ¯]-ϕ pairs measured in high-multiplicity pp collisions at sqrt[s]=13 TeV by ALICE Collaboration. spin-averaged scattering length effective range p-ϕ are extracted fully corrected correlation function employing Lednický-Lyuboshits approach. In particular, imaginary part vanishes within uncertainties,...
Around forty years have passed since the first pioneering works introduced possibility of using quantum physics to strongly enhance communications safety. Nowadays Quantum Cryptography, and in particular, Key Distribution (QKD) exited laboratories become commercial technologies that increasingly trigger attention States, military forces, banks, private corporations. This work takes on challenge bringing QKD closer a consumer technology: optical fibers deployed used by telecommunication...
A bstract The production of prompt D 0 , + and *+ mesons was measured at midrapidity (| y | < 0.5) in Pb–Pb collisions the centre-of-mass energy per nucleon–nucleon pair $$ \sqrt{s_{\mathrm{NN}}} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi> <mml:mi>NN</mml:mi> </mml:msub> </mml:msqrt> </mml:math> = 5 . 02 TeV with ALICE detector LHC. were reconstructed via their hadronic decay channels yields central (0–10%) semicentral (30–50%)...
The interaction of $\Lambda$ and $\Sigma$ hyperons (Y) with nucleons (N) is strongly influenced by the coupled-channel dynamics. Due to small mass difference $\rm N \Lambda$ \Sigma$ systems, sizeable coupling strength \Sigma\leftrightarrow processes constitutes a crucial element in determination N$\Lambda$ interaction. In this letter we present most precise measurements on p$\Lambda$ pairs, from zero relative momentum up opening channel. correlation function space for...