A5015287855- Quantum Information and Cryptography
- Quantum Mechanics and Applications
- Nonlinear Optical Materials Studies
- Advanced Fluorescence Microscopy Techniques
- Quantum Computing Algorithms and Architecture
- Advanced Multi-Objective Optimization Algorithms
- Mechanical and Optical Resonators
- Quantum optics and atomic interactions
- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Ocular and Laser Science Research
- Orbital Angular Momentum in Optics
- Systems Engineering Methodologies and Applications
- Probabilistic and Robust Engineering Design
- Biofield Effects and Biophysics
- Philosophy and History of Science
- Random lasers and scattering media
- Photoacoustic and Ultrasonic Imaging
- Optimal Experimental Design Methods
- Optical Imaging and Spectroscopy Techniques
- Analytical Chemistry and Sensors
- Optical Coherence Tomography Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Water Systems and Optimization
- Computability, Logic, AI Algorithms
University of Colorado Boulder
2019-2025
National Institute of Standards and Technology
2019-2025
University of Colorado System
2025
University of Waterloo
2009-2021
Joint Institute for Laboratory Astrophysics
2020
Department of Public Works
2015
Baltimore County Public Schools
2015
Canadian Armed Forces
2009-2010
To make precise the sense in which nature fails to respect classical physics, one requires a formal notion of classicality. Ideally, such should be defined operationally, so that it can subjected direct experimental test, and applicable wide variety scenarios, cover breadth phenomena are thought defy understanding. Bell's local causality fulfills first criterion but not second. The noncontextuality second criterion, is long-standing question whether made fulfill first. Previous attempts...
Excitation with entangled photon pairs may lead to an increase in the efficiency of two-photon absorption at low flux. The corresponding process, (E2PA), has been investigated numerous theoretical and experimental studies. However, significant ambiguity inconsistency remain literature about absolute values E2PA cross sections. Here, we use a fluorescence-based registration scheme experimentally determine upper bounds on sections for six fluorophores. These are up 4 orders magnitude lower...
Applications of randomness such as private key generation and public beacons require small blocks certified random bits on demand. Device-independent quantum number generators can produce bits, but existing quantum-proof protocols loophole-free implementations suffer from high latency, requiring many hours to any bits. We demonstrate device-independent a Bell test with more efficient protocol, obtaining multiple $512$ an average experiment time less than $5$ min per block error bounded by...
It has been proposed that entangled two-photon absorption (E2PA) can be observed with up to 1010 lower photon flux than its classical counterpart, therefore enabling ultralow-power fluorescence microscopy. However, there is a significant controversy regarding the magnitude of this quantum enhancement in excitation efficiency. We investigated signals from Rhodamine 6G and LDS798 excited CW laser or an pair source at ∼1060 nm. signal originates hot-band (HBA), which one-photon thermally...
We introduce a toluene-filled fiber platform for two-photon absorption measurements. By confining both the light and molecular sample inside 5 μm hollow core of fiber, we increase distance over which nonlinear light–matter interaction occurs. With only 7.3 nL excitation volume, measure classical (C2PA) at an average laser power as low 1.75 nW, is 45-fold improvement conventional free-space technique. use this to attempt entangled (E2PA), process with limited regime where quantum advantage...
Quantum information science promises transformative impact over a range of key technologies in computing, communication, and sensing. A prominent example uses entangled photons to overcome the resolution-degrading effects dispersion medical-imaging technology, optical coherence tomography. The quantum solution introduces new challenges: inherently low signal artifacts, additional unwanted features. It has recently been shown that entanglement is not requirement for automatic cancellation....
We examine the problem of finding minimum number Pauli measurements needed to uniquely determine an arbitrary $n$-qubit pure state among all quantum states. show that only $11$ are two-qubit compared full tomography with $16$ measurements, and $31$ three-qubit $64$ measurements. demonstrate our protocol is robust under depolarizing error simulated random experimentally test on two- systems nuclear magnetic resonance techniques. saves us a without considerable loss fidelity. compare same-size...
The optimal properties for single photons may vary drastically between different quantum technologies. Along with central frequency conversion, control over photonic temporal waveforms will be paramount to the effective coupling of systems and efficient distribution information. Through application pulse shaping nonlinear optical process sum-frequency generation, we examine a framework manipulation single-photon waveforms. We use non-perturbative treatment determine parameter regime in which...
Many experiments in the field of quantum foundations seek to adjudicate between theory and speculative alternatives it. This requires one analyze experimental data a manner that does not presume correctness formalism. The mathematical framework generalized probabilistic theories (GPTs) provides means doing so. We present scheme for determining which GPTs are consistent with given set data. It proceeds by performing tomography on preparations measurements self-consistent manner, i.e., without...
Entangled two-photon absorption (e2PA) employs advantages of classical techniques while operating in a linear excitation regime at low fluxes and potentially having greatly enhanced probabilities. A major challenge measuring the e2PA cross section, σ<sub>e2PA</sub>, is to discriminate from one- photon losses. Carefully designed transmittance measurements are required distinguish two mechanisms. For example, signal should depend on time delay between photons within an entangled pair (in...
We demonstrate the preservation of time-energy entanglement near-IR photons through thick biological media ($\leq$1.55 mm) and tissue ($\leq$ 235 $\mu$m) at room temperature. Using a Franson-type interferometer, we interferometric contrast over 0.9 in skim milk, 2% chicken tissue. This work supports many proposed opportunities for nonclassical light imaging analyses from sub-shot noise measurements to entanglement-enhanced fluorescence imaging, clearly indicating that characteristics can be...
We apply the non-dominated sorting genetic algorithm-II (NSGA-II) to a multi-objective fleet-mix problem for risk mitigation. The Stochastic Fleet Estimation (SaFE) model, Monte Carlo-based is used determine average annual requirements which fleet must meet. search Pareto-optimal combinations of platform-to-task assignments that can be complete SaFE generated scenarios. Solutions are evaluated using three objectives, with goal minimizing cost, total task duration, and solution will not able...
We apply the non-dominated sorting genetic algorithm-II (NSGA-II) to perform a multiobjective optimization of stochastic fleet estimation (SaFE) model. SaFE is Monte Carlo-based model which generates vehicle based on set requirements that supposed accomplish. A algorithm framework used in order alternate solutions between different plausible sets platforms. use coupled with simple monetary and temporal cost-based evaluations output as algorithm's fitness functions. Results showing...
We apply the non-dominated sorting genetic algorithm-II (NSGA-II) to perform a multiobjective optimization of stochastic fleet estimation (SaFE) model. SaFE is Monte Carlo-based model which generates vehicle based on set requirements that supposed accomplish. search for Pareto-optimal combinations valid platform-assignments list tasks, can be applied complete scenarios output by SaFE. Solutions are evaluated three objectives, with goal minimizing cost, total task duration time, and risk...
We present an SPDC-based photon pair source utilizing apodized ppKTP crystal to achieve a near-ideal Schmidt number of 1.0032 ±0.0005, indicating spectrally pure pairs, essential for multiphoton quantum communication systems.
We implement a traceable protocol for device-independent random number generation. Our demonstration involves transparently integrating RNG into public randomness beacon, and feeding 7434 pulses the beacon over 39 days.
We present a path length stabilization protocol using interleaved photonic classical and quantum channels through 200 m fiber link demonstrate phase drift < λ ⁄50 over 10 minutes.
We introduce a toluene-filled fiber platform for two-photon absorption measurements. By confining both the light and molecular sample inside 5 $\mu$m hollow core of fiber, we increase distance over which nonlinear light-matter interaction occurs. With only 7.3 nL excitation volume, measure classical (C2PA) at an average laser power as low 1.75 nW, is 45-fold improvement conventional free-space technique. use this to attempt entangled (E2PA), process with limited operating regime due...
The unpredictability of random numbers is fundamental to both digital security and applications that fairly distribute resources. However, existing number generators have limitations-the generation processes cannot be fully traced, audited, certified unpredictable. algorithmic steps used in pseudorandom are auditable, but they guarantee their outputs were a priori unpredictable given knowledge the initial seed. Device-independent quantum can ensure source randomness was unknown beforehand,...
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text M. D. Mazurek, A. Mikhaylov, K. Parzuchowski, J. Lum, L. Shalm, C. Drago, E. Sipe, S. W. Nam, T. Cicerone, H. Camp, R. Jimenez, Gerrits, and Stevens, "Characterizing Two-Photon Absorption With g(2)," in Frontiers Optics + Laser Science APS/DLS, OSA Technical Digest (Optica Publishing Group, 2019), paper JW4A.50. Export BibTex Endnote (RIS) HTML Plain alert Save article
Baltimore Metropolitan Water District (BMWD), which provides water to 1.8 million people, decided undertake a risk-based prioritization for the network of large diameter mains that is backbone system. This includes 86 miles PCCP. The goal provide BMWD with transparent and defensible action plan minimize risk catastrophic failure associated PCCP mains. was conducted by grouping pipelines into logical approach overall asset management strategies currently implementing. desk-top effort planning...