activity
20202026
most citedMinkowski vacuum in Rindler spacetime and Unruh thermal state for Dirac fields

9 citations · 41 across the 17 of their papers we have counts for

collaborators

17 papers

quant-ph2026

No classical particle limit for massless quanta

Riccardo Falcone, Simon Fuchs

We investigate whether relativistic massless classical particles may emerge as the classical limit of massless quanta. To address this question independently of any specific dynami…

quant-ph2026

Realistic prospects for testing a relativistic local quantum measurement inequality

Riccardo Falcone, Claudio Conti

We investigate the experimental prospects for testing a relativistic local quantum measurement inequality that quantifies the trade-off between vacuum insensitivity and responsiven…

quant-ph2025

An inequality for relativistic local quantum measurements

Riccardo Falcone, Claudio Conti

We investigate the trade-off between vacuum insensitivity and sensitivity to excitations in finite-size detectors, taking measurement locality as a fundamental constraint. We deriv…

math-ph2025

Reeh-Schlieder approximation for coherent states

Riccardo Falcone, Claudio Conti

We present an explicit, fully local Reeh-Schlieder approximation scheme for coherent states of a free scalar field. For any bounded region , we construct a one-paramet…

gr-qc2025

Particle trajectories in light pulse spacetime

Riccardo Falcone, Claudio Conti

In our previous work (Phys. Rev. Research 7, 033079), we derived the metric tensor for cylindrically shaped pulses with uniform energy density. Building upon that framework, we der…

gr-qc2025

Black Hole Information From Non-vacuum Localised Quantum States

Ali Akil, Riccardo Falcone, Nicetu Tibau Vidal +1

We revisit Hawking's black hole radiation derivation, including the quantum state of the initial matter forming the black hole. We investigate how non-vacuum initial quantum states…

gr-qc2025★ 1 cited

Cumulative effects of laser-generated gravitational shock waves

Riccardo Falcone, Claudio Conti

The emission of light pulses is expected to generate gravitational waves, opening the possibility of controlling gravity in an Earthed laboratory. However, measuring the optically-…

hep-th2024

Nonrelativistic limit of QFT in curved spacetime

Riccardo Falcone

The formalism of nonrelativistic quantum physics was originally considered in the context of inertial frames. Here, we report on a more general framework that includes noninertial…

hep-th2024

Localization in Quantum Field Theory for inertial and accelerated observers

Riccardo Falcone, Claudio Conti

We study the problem of localization in Quantum Field Theory (QFT) from the point of view of inertial and accelerated experimenters. We consider the Newton-Wigner, the Algebraic Qu…

hep-th2023★ 3 cited

Localization in Quantum Field Theory

Riccardo Falcone, Claudio Conti

We review the issue of localization in quantum field theory and detail the nonrelativistic limit. Three distinct localization schemes are examined: the Newton-Wigner, the algebraic…

hep-th2023★ 2 cited

Limits to the observation of the Unruh radiation via first-quantized hydrogen-like atoms

Riccardo Falcone, Claudio Conti

We consider ionized hydrogen-like atoms accelerated by an external electric field to detect Unruh radiation. By applying quantum field theory in the Rindler spacetime, we show that…

hep-th2023★ 9 cited

Minkowski vacuum in Rindler spacetime and Unruh thermal state for Dirac fields

Riccardo Falcone, Claudio Conti

We consider a free Dirac field in flat spacetime and we derive the representation of the Minkowski vacuum as an element of the Rindler-Fock space. We also compute the statistical o…

hep-th2023★ 5 cited

Frame-dependence of the non-relativistic limit of quantum fields

Riccardo Falcone, Claudio Conti

We study the non-relativistic limit of quantum fields for an inertial and a non-inertial observer. We show that non-relativistic particle states appear as a superposition of relati…

hep-th2022★ 9 cited

Non-relativistic limit of scalar and Dirac fields in curved spacetime

Riccardo Falcone, Claudio Conti

We give from first principles the non-relativistic limit of scalar and Dirac fields in curved spacetime. We aim to find general relativistic corrections to the quantum theory of pa…

hep-th2022★ 2 cited

Minkowski-Fock states in accelerated frames

Riccardo Falcone, Claudio Conti

An explicit Wigner formulation of Minkowski particle states for non-inertial observers is unknown. Here, we derive a general prescription to compute the characteristic function for…

gr-qc2022★ 5 cited

Observing single-particles beyond the Rindler horizon

Riccardo Falcone, Claudio Conti

We show that Minkowski single-particle states localized beyond the horizon modify the Unruh thermal distribution in an accelerated frame. This means that, contrary to classical pre…

gr-qc2020★ 5 cited

Non-linear stability of soliton solutions for massive tensor-multi-scalar-theories

Riccardo Falcone, Daniela D. Doneva, Kostas D. Kokkotas +1

The aim of this paper is to study the stability of soliton-like static solutions via non-linear simulations in the context of a special class of massive tensor-multi-scalar-theorie…