118 citations · 283 across the 19 of their papers we have counts for
13 papers · 1 filter
Principles for Optimizing Quantum Transduction in Piezo-Optomechanical Systems
James Schneeloch, Erin Sheridan, A. Matthew Smith +5
Two-way microwave-optical quantum transduction is essential to connecting distant superconducting qubits via optical fiber, and to enable quantum networking at a large scale. In Bl…
A direct interferometric test of the nonlinear phase shift gate
Peter L. Kaulfuss, Paul M. Alsing, Edwin E. Hach +3
We propose a direct interferometric test of the Non-Linear Phase Shift Gate (NLPSG), an essential piece of a Knill Laflamme Milburn Contolled-NOT (KLM CNOT) gate. We develop our an…
A scalable Controlled NOT gate for linear optical computing using microring resonators
Ryan E. Scott, Paul M. Alsing, A. Matthew Smith +5
We propose a scalable version of a KLM CNOT gate based upon integrated waveguide microring resonators (MRR), vs the original KLM-approach using beam splitters (BS). The core elemen…
A quantum optical description of losses in ring resonators based on field operator transformations
Paul M. Alsing, Edwin E. Hach, Christopher C. Tison +1
In this work we examine loss in ring resonator networks from an "operator valued phasor addition" approach (or OVPA approach) which considers the multiple transmission and cross co…
Optimal Fusion Transformations for Linear Optical Cluster State Generation
D. B. Uskov, P. Lougovski, P. M. Alsing +3
We analyze the generation of linear optical cluster states (LOCS) via addition of one and two qubits. Existing approaches employ the stochastic linear optical two-qubit CZ gate wit…
Success rates for linear optical generation of cluster states in coincidence basis
D. B. Uskov, P. M. Alsing, M. L. Fanto +2
We report on theoretical research in photonic cluster-state computing. Finding optimal schemes of generating non-classical photonic states is of critical importance for this field…
Is the Measurement Based Quantum Computing Search Algorithm Really Grover's Algorithm?
A. Matthew Smith, P. M. Alsing, J. R. McDonald +1
We question whether the measurement based quantum computing algorithm is in fact Grover's algorithm or simply a similar oracular search method. The two algorithms share several qua…
The Measurement Based Quantum Computing Search Algorithm is Faster than Grover's Algorithm
A. Matthew Smith, P. M. Alsing
We find that the Measurement Based Quantum Computing (MBQC) search algorithm on an unsorted list is not the same as Grover's search algorithm (GSA).
Proposed Experiment in Two-Qubit Linear Optical Photonic Gates for Maximal Success Rates
A. Matthew Smith, D. B. Uskov, M. Fanto +2
Here we propose an experiment in Linear Optical Quantum Computing (LOQC) using the framework first developed by Knill, Laflamme, and Milburn. This experiment will test the ideas of…
Imperfect Linear Optical Photonic Gates with Number-Resolving Photodetection
A. Matthew Smith, D. B. Uskov, L. H. Ying +1
We use the numerical optimization techniques of Uskov et al. [PRA 81, 012303 (2010)] to investigate the behavior of the success rates for KLM style [Nature 409, 46 (2001)] two- and…
Generic Two-Qubit Photonic Gates Implemented by Number-Resolving Photodetection
Dmitry B. Uskov, A. Matthew Smith, Lev Kaplan
We combine numerical optimization techniques [Uskov et al., Phys. Rev. A 79, 042326 (2009)] with symmetries of the Weyl chamber to obtain optimal implementations of generic linear-…
Maximal Success Probabilities of Linear-Optical Quantum Gates
Dmitry B. Uskov, Lev Kaplan, A. Matthew Smith +2
Numerical optimization is used to design linear-optical devices that implement a desired quantum gate with perfect fidelity, while maximizing the success rate. For the 2-qubit CS (…
How Time Works in Quantum Systems: Overview of time ordering and time correlation in weakly perturbed atomic collisions and in strongly perturbed qubits
J. H. McGuire, L. Kaplan, Kh. Kh. Shakov +5
Time ordering may be defined by first defining the limit of no time ordering (NTO) in terms of a time average of an external interaction, V(t). Previously, time correlation was def…