766 citations · 1.5k across the 25 of their papers we have counts for
26 papers
What is Physics For? Why Classical Physics is not the Limit of Quantum Mechanics
Adam Frank, Jacques L. Pienaar, Michel Bitbol +4
Quantum mechanics is justifiably held to be the most successful physical theory ever created; yet no universally accepted interpretation of its mathematical formalism exists after…
Verification of continuous variable entanglement with undetected photons
Sanjukta Kundu, Balakrishnan Viswanathan, Pawel Szczypkowski +3
We verify transverse spatial entanglement of photon-pairs generated in spontaneous parametric down conversion using a nonlinear interferometric technique without relying on any coi…
Advances in quantum imaging
Hugo Defienne, Warwick P. Bowen, Maria Chekhova +5
Modern imaging technologies are widely based on classical principles of light or electromagnetic wave propagation. They can be remarkably sophisticated, with recent successes rangi…
Synthesizing the Born rule with reinforcement learning
Rodrigo S. Piera, John B. DeBrota, Matthew B. Weiss +4
According to the subjective Bayesian interpretation of quantum theory (QBism), quantum mechanics is a tool that an agent would be wise to use when making bets about natural phenome…
Quantum state tomography of undetected photons
Jorge Fuenzalida, Jaroslav Kysela, Krishna Dovzhik +4
The measurement of quantum states is one of the most important problems in quantum mechanics. We introduce a quantum state tomography technique in which the state of a qubit is rec…
Resolution of Quantum Imaging with Undetected Photons
Jorge Fuenzalida, Armin Hochrainer, Gabriela Barreto Lemos +4
Quantum imaging with undetected photons is a recently introduced technique that goes significantly beyond what was previously possible. In this technique, images are formed without…
Characterizing mixed state entanglement through single-photon interference
Mayukh Lahiri, Radek Lapkiewicz, Armin Hochrainer +2
Entanglement verification and measurement is essential for experimental tests of quantum mechanics and also for quantum communication and information science. Standard methods of v…
One-photon measurement of two-photon entanglement
Gabriela Barreto Lemos, Radek Lapkiewicz, Armin Hochrainer +2
Entanglement is a fundamental feature of quantum mechanics, considered a key resource in quantum information processing. Measuring entanglement is an essential step in a wide range…
Device independent certification of a quantum delayed choice experiment
Emanuele Polino, Iris Agresti, Davide Poderini +5
Wave-particle duality has long been considered a fundamental signature of the non-classical behavior of quantum phenomena, specially in a delayed choice experiment (DCE), where the…
Classical Imaging with Undetected Light
A. C. Cardoso, L. P. Berruezo, D. F. Ávila +5
We obtained the phase and intensity images of an object by detecting classical light which never interacted with it. With a double passage of a pump and a signal laser beams throug…
Causal modeling the delayed choice experiment
Rafael Chaves, Gabriela Barreto Lemos, Jacques Pienaar
Wave-particle duality has become one of the flagships of quantum mechanics. This counter-intuitive concept is highlighted in a delayed choice experiment, where the experimental set…
Nonclassicality of induced coherence without induced emission
M. Lahiri, A. Hochrainer, R. Lapkiewicz +2
Interference of two beams produced at separate biphoton sources was first observed more than two decades ago. The phenomenon, often called "induced coherence without induced emissi…
Quantifying the Momentum Correlation between Two Light Beams by Detecting One
Armin Hochrainer, Mayukh Lahiri, Radek Lapkiewicz +2
We report a measurement of the transverse momentum correlation between two photons by detecting only one of them. Our method uses two identical sources in an arrangement, in which…
Interference Fringes Controlled by Non-Interfering Photons
Armin Hochrainer, Mayukh Lahiri, Radek Lapkiewicz +2
We observe spatial fringes in the interference of two beams, which are controlled by a third beam through the phenomenon of induced coherence without induced emission. We show that…
Twin Photon Correlations in Single-Photon Interference
Mayukh Lahiri, Armin Hochrainer, Radek Lapkiewicz +2
We show that it is possible to generate a novel single-photon fringe pattern by using two spatially separated identical bi-photon sources. The fringes are similar to the ones obser…
Partial Polarization by Quantum Distinguishability
Mayukh Lahiri, Armin Hochrainer, Radek Lapkiewicz +2
Partial polarization is the manifestation of the correlation between two mutually orthogonal transverse field components associated with a light beam. We show both theoretically an…
Theory of Quantum Imaging with Undetected Photons
Mayukh Lahiri, Radek Lapkiewicz, Gabriela Barreto Lemos +1
A novel quantum imaging technique has recently been demonstrated in an experiment, where the photon used for illuminating an object is not detected; the image is obtained by interf…
Optical integration of a real-valued function by measurement of a Stokes Parameter
Gabriela Barreto Lemos, Paulo Henrique Souto Ribeiro, Stephen Walborn
We experimentally implement an optical algorithm for integration of a real-valued bivariate func- tion. A user-defined function is encoded in the position-dependent phase of one of…
Characterization of a spatial light modulator as a polarization quantum channel
G. Barreto Lemos, J. O. de Almeida, S. P. Walborn +2
Spatial light modulators are versatile devices employed in a vast range of applications to modify the transverse phase or amplitude profile of an incident light beam. Most experime…
Ancilla-assisted measurement of photonic spatial correlations and entanglement
M. Hor-Meyll, J. O. de Almeida, G. B. Lemos +2
We report an experiment in which the moments of spatial coordinates of down-converted photons are measured directly, without having to reconstruct any marginal probability distribu…
Quantum Imaging with Undetected Photons
Gabriela B. Lemos, Victoria Borish, Garrett D. Cole +3
Indistinguishable quantum states interfere, but the mere possibility of obtaining information that could distinguish between overlapping states inhibits quantum interference. Quant…
Experimental Observation of Quantum Chaos in a Beam of Light
G. B. Lemos, R. M. Gomes, S. P. Walborn +2
The manner in which unpredictable chaotic dynamics manifests itself in quantum mechanics is a key question in the field of quantum chaos. Indeed, very distinct quantum features can…
Decoherence, entanglement decay, and equilibration produced by chaotic environments
Gabriela Barreto Lemos, Fabricio Toscano
We investigate decoherence in quantum systems coupled via dephasing-type interactions to an arbitrary environment with chaotic underlying classical dynamics. The coherences of the…
The role of chaos in quantum communication through a dynamical dephasing channel
Gabriela Barreto Lemos, Giuliano Benenti
In this article we treat the subject of chaotic environments with few degrees of freedom in quantum communication by investigating a conservative dynamical map as a model of a deph…