518 citations · 2.8k across the 54 of their papers we have counts for
56 papers
Defining Unique, Redundant, and Synergistic Quantum Information
Sean Ericson, Hailin Wang, S. J. van Enk
We extend the classical ideas of the Partial Information Decomposition (PID) to the quantum domain and quantify unique, redundant, and synergistic quantum information. We show that…
Success probabilities in time-reversal based hybrid quantum state transfer
Kevin J. Randles, S. J. van Enk
We consider two memory nodes of a quantum network connected by flying qubits. We are particularly interested in the case where a flying qubit produced by one node has to be transfo…
Quantum Partial Information Decomposition
S. J. van Enk
The Partial Information Decomposition (PID) takes one step beyond Shannon's theory in decomposing the information two variables possess about a third variable into distin…
Pooling Probability Distributions and the Partial Information Decomposition
Steven J. van Enk
Notwithstanding various attempts to construct a Partial Information Decomposition (PID) for multiple variables by defining synergistic, redundant, and unique information, there is…
Quantum state transfer and input-output theory with time reversal
Kevin Randles, Steven van Enk
Being able to reliably transfer the quantum state from one system to another is crucial to developing quantum networks. A standard way to accomplish this transfer of information is…
How to Project onto an Arbitrary Single-Photon Wavepacket
Tzula B. Propp, Steven J. van Enk
The time-frequency degree of freedom of the electromagnetic field is the final frontier for single-photon measurements. The temporal and spectral distribution a measurement retrodi…
Testing the context-independence of quantum gates
Andrzej Veitia, Steven J. van Enk
The actual gate performed on, say, a qubit in a quantum computer may depend, not just on the actual laser pulses and voltages we programmed to implement the gate, but on its {\em c…
Exchanging identical particles and topological quantum computing
S. J. van Enk
The phase factor that features in the exchange symmetry for identical spin- fermions or bosons is not simply and automatically equal to the phase factor one can obse…
Time Reversal of Arbitrary Photonic Temporal Modes via Nonlinear Optical Frequency Conversion
Michael G Raymer, Dileep V Reddy, Steven J van Enk +1
Single-photon wave packets can carry quantum information between nodes of a quantum network. An important general operation in photon-based quantum information systems is blind rev…
Macroscopic instructions vs microscopic operations in quantum circuits
Andrzej Veitia, Marcus P. da Silva, Robin Blume-Kohout +1
In many experiments on microscopic quantum systems, it is implicitly assumed that when a macroscopic procedure or "instruction" is repeated many times -- perhaps in different conte…
Photodetector figures of merit in terms of POVMs
S. J. van Enk
A photodetector may be characterized by various figures of merit such as response time, bandwidth, dark count rate, efficiency, wavelength resolution, and photon-number resolution.…
The time-dependent spectrum of a single photon and its POVM
S. J. van Enk
Suppose we measure the time-dependent spectrum of a single photon. That is, we first send the photon through a set of frequency filters (which we assume to have different filter fr…
Non-holonomic tomography II: Detecting correlations in multiqudit systems
Christopher Jackson, Steven van Enk
In the context of quantum tomography, quantities called a partial determinants\cite{jackson2015detecting} were recently introduced. PDs (partial determinants) are explicit function…
Non-holonomic tomography I: The Born rule as a connection between experiments
Christopher Jackson, Steven van Enk
In the context of quantum tomography, we recently introduced a quantity called a partial determinant \cite{jackson2015detecting}. PDs (partial determinants) are explicit functions…
Experimental demonstration of loop state-preparation-and-measurement tomography
A. F. McCormick, S. J. van Enk, M. Beck
We have performed an experiment demonstrating that loop state-preparation-and-measurement (SPAM) tomography [C. Jackson and S. J. van Enk, Phys. Rev. A 92, 042312 (2015)] is capabl…
The Born rule as a parallel transport equation: Detecting multiqudit state-preparation and measurement correlations
Christopher Jackson, Steven van Enk
In the context of quantum tomography, we recently introduced a quantity called a partial determinant \cite{jackson2015detecting}. PDs (partial determinants) are explicit functions…
How Nonlinear Optical Effects degrade Hong-Ou-Mandel Like Interference
Imran M. Mirza, S. J. van Enk
Two-photon interference effects, such as the Hong-Ou-Mandel (HOM) effect, can be used to characterize to what extent two photons are identical. Furthermore, these interference effe…
Detecting correlated errors in SPAM tomography
Christopher Jackson, S. J. van Enk
Whereas in standard quantum state tomography one estimates an unknown state by performing various measurements with known devices, and whereas in detector tomography one estimates…
The Brandeis Dice Problem and Statistical Mechanics
S. J. van Enk
Jaynes invented the Brandeis Dice Problem as a simple illustration of the MaxEnt (Maximum Entropy) procedure that he had demonstrated to work so well in Statistical Mechanics. I co…
Two-Photon Interference and Entanglement in Coupled Cavities
Imran M. Mirza, S. J. van Enk
Two-photon interference effects, such as the Hong-Ou-Mandel (HOM) effect, can be used to characterize to what extent two photons are identical. Identical photons are necessary for…
Single-photon Spectra in Quantum Optomechanics
Imran M. Mirza, S. J. van Enk
We consider how a single photon can probe the quantum nature of a moving mirror in the context of quantum optomechanics. In particular, we demonstrate how the single-photon spectru…
On the permutationally invariant part of a density matrix and nonseparability of N-qubit states
Ting Gao, Fengli Yan, S. J. van Enk
We consider the concept of "the permutationally invariant (PI) part of a density matrix," which has proven very useful for both efficient quantum state estimation and entanglement…
Generating Robust Optical Entanglement in Weak Coupling Optomechanical Systems
Mark C. Kuzyk, Steven J. van Enk, Hailin Wang
A pulsed scheme for generating robust optical entanglement via the coupling of two optical modes to a mechanical oscillator is proposed. This scheme is inspired by the Sørensen-Møl…
Error models in quantum computation: an application of model selection
Lucia Schwarz, Steven van Enk
Threshold theorems for fault-tolerant quantum computing assume that errors are of certain types. But how would one detect whether errors of the "wrong" type occur in one's experime…