223 citations · 1.1k across the 25 of their papers we have counts for
25 papers
Quantum Assemblage Tomography
Luis Villegas-Aguilar, Yuanlong Wang, Alex Pepper +7
A central requirement in asymmetric quantum nonlocality protocols, such as quantum steering, is the precise reconstruction of state assemblages -- statistical ensembles of quantum…
A robust approach for time-bin encoded photonic quantum information protocols
Simon J. U. White, Emanuele Polino, Farzad Ghafari +6
Quantum states encoded in the time-bin degree of freedom of photons represent a fundamental resource for quantum information protocols. Traditional methods for generating and measu…
Nonlocality activation in a photonic quantum network
Luis Villegas-Aguilar, Emanuele Polino, Farzad Ghafari +9
Bell nonlocality refers to correlations between two distant, entangled particles that challenge classical notions of local causality. Beyond its foundational significance, nonlocal…
Scalable multiparty steering based on a single pair of entangled qubits
Alex Pepper, Travis. J. Baker, Yuanlong Wang +8
The distribution and verification of quantum nonlocality across a network of users is essential for future quantum information science and technology applications. However, beyond…
Digital Discovery of 100 diverse Quantum Experiments with PyTheus
Carlos Ruiz-Gonzalez, Sören Arlt, Jan Petermann +6
Photons are the physical system of choice for performing experimental tests of the foundations of quantum mechanics. Furthermore, photonic quantum technology is a main player in th…
Provable superior accuracy in machine learned quantum models
Chengran Yang, Andrew Garner, Feiyang Liu +5
In modelling complex processes, the potential past data that influence future expectations are immense. Models that track all this data are not only computationally wasteful but al…
Bandwidth control of the biphoton wavefunction exploiting spatio-temporal correlations
J. J. Miguel Varga, Jon Lasa-Alonso, Martín Molezuelas-Ferreras +2
In this work we study the spatio-temporal correlations of photons produced by spontaneous parametric down conversion. In particular, we study how the waists of the detection and pu…
Quantum steering with vector vortex photon states with the detection loophole closed
Sergei Slussarenko, Dominick J. Joch, Nora Tischler +5
Violating a nonlocality inequality enables the most powerful remote quantum information tasks and fundamental tests of quantum physics. Loophole-free photonic verification of nonlo…
Conceptual understanding through efficient inverse-design of quantum optical experiments
Mario Krenn, Jakob Kottmann, Nora Tischler +1
One crucial question within artificial intelligence research is how this technology can be used to discover new scientific concepts and ideas. We present Theseus, an explainable AI…
A strong no-go theorem on the Wigner's friend paradox
Kok-Wei Bong, Aníbal Utreras-Alarcón, Farzad Ghafari +5
Does quantum theory apply at all scales, including that of observers? New light on this fundamental question has recently been shed through a resurgence of interest in the long-sta…
Interfering trajectories in experimental quantum-enhanced stochastic simulation
Farzad Ghafari, Nora Tischler, Carlo Di Franco +3
Simulations of stochastic processes play an important role in the quantitative sciences, enabling the characterisation of complex systems. Recent work has established a quantum adv…
Single-shot quantum memory advantage in the simulation of stochastic processes
Farzad Ghafari, Nora Tischler, Jayne Thompson +7
Stochastic processes underlie a vast range of natural and social phenomena. Some processes such as atomic decay feature intrinsic randomness, whereas other complex processes, e.g.…
Experimental Quantum Switching for Exponentially Superior Quantum Communication Complexity
Kejin Wei, Nora Tischler, Si-Ran Zhao +13
Finding exponential separation between quantum and classical information tasks is like striking gold in quantum information research. Such an advantage is believed to hold for quan…
Experimental Realization of a Quantum Autoencoder: The Compression of Qutrits via Machine Learning
Alex Pepper, Nora Tischler, Geoff J. Pryde
With quantum resources a precious commodity, their efficient use is highly desirable. Quantum autoencoders have been proposed as a way to reduce quantum memory requirements. Genera…
Conclusive experimental demonstration of one-way Einstein-Podolsky-Rosen steering
Nora Tischler, Farzad Ghafari, Travis J. Baker +10
Einstein-Podolsky-Rosen steering is a quantum phenomenon wherein one party influences, or steers, the state of a distant party's particle beyond what could be achieved with a separ…
Quantum optical realization of arbitrary linear transformations allowing for loss and gain
Nora Tischler, Carsten Rockstuhl, Karolina Słowik
Unitary transformations are routinely modeled and implemented in the field of quantum optics. In contrast, nonunitary transformations that can involve loss and gain require a diffe…
Strong unitary and overlap uncertainty relations: theory and experiment
Kok-Wei Bong, Nora Tischler, Raj B. Patel +3
We derive and experimentally investigate a strong uncertainty relation valid for any unitary operators, which implies the standard uncertainty relation as a special case, and w…
Quantum optical rotatory dispersion
Nora Tischler, Mario Krenn, Robert Fickler +3
The phenomenon of molecular optical activity manifests itself as the rotation of the plane of linear polarization when light passes through chiral media. Measurements of optical ac…
Quantum control of photonic entanglement with a single sub-wavelength structure
Alexander Büse, Mathieu L. Juan, Nora Tischler +4
Quantum entanglement is the basic resource for most quantum information schemes. A fundamental problem of using photonic states as carriers of quantum information is that they inte…
On Small Beams with Large Topological Charge
Mario Krenn, Nora Tischler, Anton Zeilinger
Light beams can carry a discrete, in principle unbounded amount of angular momentum. Examples of such beams, the Laguerre-Gauss modes, are frequently expressed as solutions of the…
Topological metrology and its application to optical position sensing
Nora Tischler, Mathieu L. Juan, Sukhwinder Singh +4
We motivate metrology schemes based on topological singularities as a way to build robustness against deformations of the system. In particular, we relate reference settings of met…
Necessary symmetry conditions for the rotation of light
Ivan Fernandez-Corbaton, Xavier Vidal, Nora Tischler +1
Two conditions on symmetries are identified as necessary for a linear scattering system to be able to rotate the linear polarisation of light: Lack of at least one mirror plane of…
The role of angular momentum in the construction of electromagnetic multipolar fields
Nora Tischler, Xavier Zambrana-Puyalto, Gabriel Molina-Terriza
Multipolar solutions of Maxwell's equations are used in many practical applications and are essential for the understanding of light-matter interactions at the fundamental level. U…
Electromagnetic duality symmetry and helicity conservation for the macroscopic Maxwell's equations (previously "Experimental demonstration of electromagnetic duality symmetry breaking")
Ivan Fernandez-Corbaton, Xavier Zambrana-Puyalto, Nora Tischler +4
Modern physics is largely devoted to study conservation laws, such as charge, energy, linear momentum or angular momentum, because they give us information about the symmetries of…