90 citations · 241 across the 24 of their papers we have counts for
22 papers · 1 filter
Dynamic distributed quantum sensing of radio-frequency fields via time-bin entanglement
Vedansh Nehra, Richard Birrittella, Benjamin Malia +6
We propose a novel framework for discrete-variable (DV) distributed quantum sensing, wherein traditional polarization-based probes are replaced with time-bin entangled qubits. We s…
Photonic qubit encoding interconversion for heterogeneous quantum networking
Vedansh Nehra, Richard J. Birrittella, Christopher C. Tison +10
Quantum information processing, communication, and sensing networks are being developed with various qubit platforms that use different encoding schemes. Connecting quantum network…
Lissajous coherent states via projection
Errico J. Russo, James Schneeloch, Edwin E. Hach +3
We construct stationary coherent states concentrated on Lissajous figures of the isotropic and anisotropic harmonic oscillators, the latter having coprime frequencies, by projectin…
Multiphoton Interference with a symmetric SU(N) beam splitter and the generalization of the extended Hong-Ou-Mandel effect
Paul M. Alsing, Richard J. Birrittella, Peter L. Kaulfuss
We examine multiphoton interference with a symmetric beam splitter , an extension of features of the 50/50 beam splitter extended Hong-Ou-Mandel (eHOM) effect,…
Telecommunications fiber-optic and free-space quantum local area networks at the Air Force Research Laboratory
Erin Sheridan, Nicholas J. Barton, Richard Birrittella +29
As quantum computing, sensing, timing, and networking technologies mature, quantum network testbeds are being deployed across the United States and around the world. To support the…
An examination of the extended Hong-Ou-Mandel effect and considerations for experimental detection
Paul M. Alsing, Richard J. Birrittella
In recent works we have explored a multi-photon extension of the celebrated two-photon Hong-Ou-Mandel (HOM) effect in which the quantum amplitudes for a two-photon input to a lossl…
The Hong-Ou-Mandel effect is really odd
Paul M. Alsing, Richard J. Birrittella, Christopher C. Gerry +2
When quantum state amplitudes interfere, surprising non-classical features emerge which emphasis the roles of indistinguishability and discreteness in quantum mechanics. A famous e…
Verifying Energy-Time Entanglement with Irregularly Sampled Correlations
James Schneeloch, Christopher C. Tison, Richard J. Birrittella +3
Verifying entanglement with experimental measurements requires that we take the limitations of experimental techniques into account, while still proving that the data obtained coul…
Engineering superpositions of N00N states using an asymmetric non-linear Mach-Zehnder interferometer
R. J. Birrittella, P. M. Alsing, J. Schneeloch +3
We revisit a method for mapping arbitrary single-mode pure states into superpositions of N00N states using an asymmetric non-linear Mach-Zehnder interferometer (ANLMZI). This metho…
Numerical evidence for a bipartite pure state entanglement witness from approximate analytical diagonalization
Paul M. Alsing, Richard J. Birrittella
We show numerical evidence for a bipartite pure state entanglement witness that is readily calculated from the wavefunction coefficients directly, without the need for…
Backscattering and Hong-Ou-Mandel Manifolds in Microring Resonators
Peter L. Kaulfuss, Paul M. Alsing, Richard J. Birrittella +1
We investigate the effect of backscattering on the Hong-Ou-Mandel manifold (HOMM) that manifests in double-bus mircoring resonators (MRRs). The HOMM represents higher-dimensional p…
Nonlinear optics as a source of high-dimensional genuine tripartite entanglement
James Schneeloch, Richard J. Birrittella, Christopher C. Tison +3
We lay down a general scheme to quantify the amount of genuine tripartite entanglement present in the spatial and energy-time degrees of freedom of entangled photon triplets using…
Unconditional remote entanglement using second-harmonic generation and twin two-mode squeezed vacuum states
Richard J. Birrittella, James Schneeloch, Christopher C. Tison +3
We propose a photonics-based, continuous-variable (CV) form of remote entanglement utilizing strictly second-order nonlinear optical interactions that does not require the implemen…
The distribution of density matrices at fixed purity for arbitrary dimensions
Paul M. Alsing, Christopher C. Tison, James Schneeloch +2
We present marginal cumulative distribution functions (CDF) for density matrices of fixed purity for arbitrary dimension . We g…
Resolution of 100 photons and quantum generation of unbiased random numbers
Miller Eaton, Amr Hossameldin, Richard J. Birrittella +5
Macroscopic quantum phenomena, such as observed in superfluids and superconductors, have led to promising technological advancements and some of the most important tests of fundame…
Quantifying Tripartite Spatial and Energy-Time Entanglement in Nonlinear Optics
James Schneeloch, Richard J. Birrittella, Christopher C. Tison +3
In this work, we provide a means to quantify genuine tripartite entanglement in arbitrary (pure and mixed) continuous-variable states as measured by the Tripartite Entanglement of…
Extending the Hong-Ou-Mandel Effect: the power of nonclassicality
Paul M. Alsing, Richard J. Birrittella, Christopher C. Gerry +2
We show that the parity (evenness or oddness) of a nonclassical state of light has a dominant influence on the interference effects at a balanced beam splitter, irrespective of the…
Proposal for a quantum random number generator using coherent light an a non-classical observable
Christopher C. Gerry, Richard J. Birrittella, Paul M. Alsing +3
The prototype quantum random number (random bit) generators (QRNG) consists of one photon at a time falling on a beam splitter followed by random detection in one or the ot…
Optimal spin- and planar-quantum squeezing in superpositions of spin coherent states
Richard J. Birrittella, Jason Ziskind, Edwin E. Hach +2
We investigate the presence of spin- and planar- squeezing in generalized superpositions of atomic (or spin) coherent states (ACS). Spin-squeezing has been shown to be a useful too…
The Parity Operator: applications in quantum metrology
Richard J. Birrittella, Paul M. Alsing, Christopher C. Gerry
In this paper, we review the use of parity as a detection observable in quantum metrology as well as introduce some original findings with regards to measurement resolution in Rams…
Phase effects in coherently-stimulated down-conversion with a quantized pump field
Richard J. Birrittella, Paul M. Alsing, Christopher C. Gerry
We investigate the effect of the cumulative phase on the photon statistics of the three-mode state whose evolution is described by the trilinear Hamiltonian $\hat{H}_{I}=i\hbarκ\bi…
Photon Added Coherent States: Nondeterministic, Noiseless Amplification in Quantum Metrology
Bryan T. Gard, Dong Li, Chenglong You +13
Probabilistic amplification through photon addition, at the output of an Mach-Zehnder interferometer is discussed for a coherent input state. When a metric of signal to noise ratio…