74 citations · 275 across the 16 of their papers we have counts for
17 papers
Plasmon-Enhanced Second-Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber +8
The intrinsically weak nonlinear optical response of existing materials, further constrained by symmetry-forbidden second-order processes in centrosymmetric media, severely limits…
Proof-of-Principle Implementation of Quantum Key Distribution in an Indefinite Causal Order
Yann Valibouse, Martí Cladera-Rosselló, Michael Antesberger +6
In quantum physics, the order in which different operations occur can be placed in superposition. The resulting processes have an indefinite causal order, which is of fundamental i…
Scaling native entanglement generation in layered semiconductors with quasi-phase matching
Benjamin Braun, Andrea Alessandrini, Josip Bajo +10
Efficient generation of entangled photons typically relies on spontaneous parametric down-conversion (SPDC) in phase-matched macroscopic nonlinear media. However, generating entang…
Time-Delocalized Local Measurements in an Indefinite Causal Order
Yann Valibouse, Martí Cladera-Rosselló, Michael Antesberger +3
Processes with indefinite causal order (ICO), such as the quantum switch, are an emerging resource for quantum tasks and a fundamental test bed for studies of temporal correlations…
Testing Single Photon Entanglement using Self-Referential Measurements
Daniel Kun, Teodor Strömberg, Borivoje Dakić +2
Entanglement does not always require one particle per party. It was predicted some thirty years ago that a single photon traversing a beam splitter could violate a Bell inequality.…
Atomically thin silver films for enhanced nanoscale nonlinear optics
Philipp K. Jenke, Saad Abdullah, Andrew P. Weber +8
The inherently weak nonlinear optical response of bulk materials remains a fundamental limitation in advancing photonic technologies. Nanophotonics addresses this challenge by tail…
Toward an Experimental Device-Independent Verification of Indefinite Causal Order
Carla M. D. Richter, Michael Antesberger, Huan Cao +2
In classical physics, events follow a definite causal order: the past influences the future, but not the reverse. Quantum theory, however, permits superpositions of causal orders -…
Roadmap for Photonics with 2D Materials
F. Javier García de Abajo, D. N. Basov, Frank H. L. Koppens +145
Triggered by the development of exfoliation and the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or few atomic layer…
Experimental Quantum State Certification by Actively Sampling Photonic Entangled States
Michael Antesberger, Mariana M. E. Schmid, Huan Cao +3
Entangled quantum states are essential ingredients for many quantum technologies, but they must be validated before they are used. As a full characterization is prohibitively resou…
Direct and Efficient Detection of Quantum Superposition
Daniel Kun, Teodor Strömberg, Michele Spagnolo +3
One of the most striking quantum phenomena is superposition, where one particle simultaneously inhabits different states. Most methods to verify coherent superposition are indirect…
Experimental Aspects of Indefinite Causal Order in Quantum Mechanics
Lee A. Rozema, Teodor Strömberg, Huan Cao +3
In the past decade, the toolkit of quantum information has been expanded to include processes in which the basic operations do not have definite causal relations. Originally consid…
Quasi-phase-matched up- and down-conversion in periodically poled layered semiconductors
Chiara Trovatello, Carino Ferrante, Birui Yang +15
Nonlinear optics lies at the heart of classical and quantum light generation. The invention of periodic poling revolutionized nonlinear optics and its commercial applications by en…
Genuine multipartite entanglement detection with imperfect measurements: concept and experiment
Huan Cao, Simon Morelli, Lee A. Rozema +3
Standard procedures for entanglement detection assume that experimenters can exactly implement specific quantum measurements. Here, we depart from such idealizations and investigat…
Distribution of Telecom Entangled Photons through a 7.7 km Antiresonant Hollow-Core Fiber
Michael Antesberger, Carla M. D. Richter, Francesco Poletti +6
State of the art classical and quantum communication rely on standard optical fibers with solid cores to transmit light over long distances. However, recent advances have led to th…
Experimental superposition of time directions
Teodor Strömberg, Peter Schiansky, Marco Túlio Quintino +5
In the macroscopic world, time is intrinsically asymmetric, flowing in a specific direction, from past to future. However, the same is not necessarily true for quantum systems, as…
Semi-device-independent certification of indefinite causal order in a photonic quantum switch
Huan Cao, Jessica Bavaresco, Ning-Ning Wang +7
We report an experimental certification of indefinite causal order that relies only on the characterization of the operations of a single party. We do so in the semi-device-indepen…
Fiber-compatible photonic feed-forward with 99% fidelity
G. L. Zanin, M. J. Jacquet, M. Spagnolo +4
Both photonic quantum computation and the establishment of a quantum internet require fiber-based measurement and feed-forward in order to be compatible with existing infrastructur…