311 citations · 786 across the 15 of their papers we have counts for
15 papers
Backreaction of stimulated Hawking radiation in an optical analogue
Lorenzo M. Procopio, Raul Aguero-Santacruz, David Bermudez +1
Hawking radiation - the emission of quantum particles at the event horizon of a black hole - connects gravity with quantum mechanics and thermodynamics; the Bekenstein-Hawking entr…
Indefinite causal order in cavity quantum electrodynamics
Lorenzo M. Procopio, L. O. Castaños-Cervantes, Tim J. Bartley
Indefinite causal order (ICO) has the potential to be a new resource for quantum information processing. In most of its experiments, ICO has been investigated in a photonic platfor…
Cryogenic Feedforward of a Photonic Quantum State
Frederik Thiele, Niklas Lamberty, Thomas Hummel +8
Modulation conditioned on measurements on entangled photonic quantum states is a cornerstone technology of optical quantum information processing. Performing this task with low lat…
Coherent control of two Jaynes-Cummings cavities
L. O. Castaños-Cervantes, Lorenzo M. Procopio, Marco Enríquez
In this work, we uncover new features on the study of a two-level atom interacting with one of two cavities in a coherent superposition. The James-Cummings model is used to describ…
Parallelization of frequency domain quantum gates: manipulation and distribution of frequency-entangled photon pairs generated by a 21 GHz silicon micro-resonator
Antoine Henry, Dario Fioretto, Lorenzo M. Procopio +8
Harnessing the frequency dimension in integrated photonics offers key advantages in terms of scalability, noise resilience, parallelization and compatibility with telecom multiplex…
Parameter estimation via indefinite causal structures
Lorenzo M. Procopio
Quantum Fisher information is the principal tool used to give the ultimate precision bound on the estimation of parameters for quantum channels. In this work, we present analytical…
Multifold behavior of the information transmission by the quantum 3-switch
Lorenzo M. Procopio, Francisco Delgado, Marco Enriquez +1
We uncover new behaviors of the transmission of information by three quantum channels in superposition of causal orders subject to some level of noise. We find that the transmissio…
Sending classical information via three noisy channels in superposition of causal orders
Lorenzo M. Procopio, Francisco Delgado, Marco Enriquez +2
In this work, we study the transmission of classical information through three completely depolarizing channels in superposition of different causal orders. We thus introduce the q…
Communication Enhancement Through Quantum Coherent Control of Channels in an Indefinite Causal-order Scenario
Lorenzo M. Procopio, Francisco Delgado, Marco Enriquez +2
In quantum Shannon theory, transmission of information is enhanced by quantum features. Up to very recently, the trajectories of transmission remained fully classical. Recently, a…
Continuous-variable entanglement of two bright coherent states that never interacted
David Barral, Nadia Belabas, Lorenzo M. Procopio +4
We study continuous-variable entanglement of bright quantum states in a pair of evanescently coupled nonlinear waveguides operating in the regime of degenerate down-conve…
Experimental Verification of an Indefinite Causal Order
Giulia Rubino, Lee A. Rozema, Adrien Feix +5
Investigating the role of causal order in quantum mechanics has recently revealed that the causal distribution of events may not be a-priori well-defined in quantum theory. While t…
Comment on Adler's "Does the Peres experiment using photons test for hyper-complex (quaternionic) quantum theories?"
Lorenzo M. Procopio, Lee A. Rozema, Borivoje Dakić +1
In his recent article [arXiv:1604.04950], Adler questions the usefulness of the bound found in our experimental search for genuine effects of hyper-complex quantum mechanics [arXiv…
On the geometry of spatial biphoton correlation in spontaneous parametric down-conversion
Lorenzo M. Procopio, Oscar Rosas-Ortiz, Victor Velazquez
Analytical expressions are derived for the distribution rates of spatial coincidences in the counting of photons produced by spontaneous parametric down conversion (SPDC). Gaussian…
Experimental Test of Hyper-Complex Quantum Theories
Lorenzo M. Procopio, Lee A. Rozema, Zi Jing Wong +5
In standard quantum mechanics, complex numbers are used to describe the wavefunction. Although complex numbers have proven sufficient to predict the results of existing experiments…
Experimental Superposition of Orders of Quantum Gates
Lorenzo M. Procopio, Amir Moqanaki, Mateus Araújo +7
In a quantum computer, creating superpositions of quantum bits (qubits) in different states can lead to a speed-up over classical computers [1], but quantum mechanics also allows f…