148 citations · 1.1k across the 22 of their papers we have counts for
22 papers
Interactive and accessible quantum key distribution modules for introducing students to quantum science and engineering
John M. Donohue, Silas Ifeanyi, Andrew Chisholm +11
Teaching key concepts in quantum information science and technology benefits from hands-on activities that can engage students at all levels, especially high-school and undergradua…
USEQIP: Outcomes and experiences from 17 years of undergraduate summer schools in experimental quantum information science
John M Donohue, Michael J Grabowecky, George Nichols +6
To grow the quantum information science and technology workforce, opportunities for students to gain experiential learning and build a sense of belonging in the broader community a…
Building a Quantum Engineering Undergraduate Program
Abraham Asfaw, Alexandre Blais, Kenneth R. Brown +34
The rapidly growing quantum information science and engineering (QISE) industry will require both quantum-aware and quantum-proficient engineers at the bachelor's level. We provide…
Achieving the ultimate quantum timing resolution
Vahid Ansari, Benjamin Brecht, Jano Gil-López +5
Accurate time-delay measurement is at the core of many modern technologies. Here, we present a temporal-mode demultiplexing scheme that achieves the ultimate quantum precision for…
Remotely projecting states of photonic temporal modes
Vahid Ansari, John M. Donohue, Benjamin Brecht +1
Two-photon time-frequency entanglement is a valuable resource in quantum information. Resolving the wavepacket of ultrashort pulsed single-photons, however, is a challenge. Here, w…
Pulse shaping using dispersion-engineered difference frequency generation
Markus Allgaier, Vahid Ansari, John Matthew Donohue +5
The temporal-mode (TM) basis is a prime candidate to perform high-dimensional quantum encoding. Quantum frequency conversion has been employed as a tool to perform tomographic anal…
High-performance source of spectrally pure, polarization entangled photon pairs based on hybrid integrated-bulk optics
Evan Meyer-Scott, Nidhin Prasannan, Christof Eigner +4
Entangled photon pair sources based on bulk optics are approaching optimal design and implementation, with high state fidelities, spectral purities and heralding efficiencies, but…
Quantum-limited time-frequency estimation through mode-selective photon measurement
John M. Donohue, Vahid Ansari, Jaroslav Řeháček +5
By projecting onto complex optical mode profiles, it is possible to estimate arbitrarily small separations between objects with quantum-limited precision, free of uncertainty arisi…
Ultrafast quantum interferometry with energy-time entangled photons
Jean-Philippe W. MacLean, John M. Donohue, Kevin J. Resch
Many quantum advantages in metrology and communication arise from interferometric phenomena. Such phenomena can occur on ultrafast time scales, particularly when energy-time entang…
Tailoring nonlinear processes for quantum optics with pulsed temporal-mode encodings
Vahid Ansari, John M. Donohue, Benjamin Brecht +1
The time-frequency degree of freedom is a powerful resource for implementing high-dimensional quantum information processing. In particular, field-orthogonal pulsed temporal modes…
Heralded generation of high-purity ultrashort single photons in programmable temporal shapes
Vahid Ansari, Emanuele Roccia, Matteo Santandrea +9
We experimentally demonstrate a source of nearly pure single photons in arbitrary temporal shapes heralded from a parametric down-conversion (PDC) source at telecom wavelengths. Th…
Direct characterization of ultrafast energy-time entangled photon pairs
Jean-Philippe W. MacLean, John M. Donohue, Kevin J. Resch
Energy-time entangled photons are critical in many quantum optical phenomena and have emerged as important elements in quantum information protocols. Entanglement in this degree of…
Streak-camera measurements of single photons at telecom wavelength
Markus Allgaier, Vahid Ansari, Christof Eigner +8
Up to this point streak-cameras have been a powerful tool for temporal characterization of ultrafast light pulses even at the single photon level. However, the low signal-to-noise…
Tomography and Purification of the Temporal-Mode Structure of Quantum Light
Vahid Ansari, John M. Donohue, Markus Allgaier +6
High-dimensional quantum information processing promises capabilities beyond the current state of the art, but addressing individual information-carrying modes presents a significa…
Spectrally engineering photonic entanglement with a time lens
John M. Donohue, Morgan Mastrovich, Kevin J. Resch
In the same manner that free-space propagation and curved glass lenses are used to shape the spatial properties of light, a combination of chromatic dispersion and devices known as…
Precision measurement of the nuclear polarization in laser-cooled, optically pumped
Benjamin Fenker, John A. Behr, Dan Melconian +18
We report a measurement of the nuclear polarization of laser-cooled, optically-pumped atoms which will allow us to precisely measure angular correlation parameter…
Identifying Nonconvexity in the Sets of Limited-Dimension Quantum Correlations
John Matthew Donohue, Elie Wolfe
Quantum theory is known to be nonlocal in the sense that separated parties can perform measurements on a shared quantum state to obtain correlated probability distributions, which…
Theory of high-efficiency sum-frequency generation for single-photon waveform conversion
John M. Donohue, Michael D. Mazurek, Kevin J. Resch
The optimal properties for single photons may vary drastically between different quantum technologies. Along with central frequency conversion, control over photonic temporal wavef…
Ultrafast time-division demultiplexing of polarization-entangled photons
John M. Donohue, Jonathan Lavoie, Kevin J. Resch
Maximizing the information transmission rate through quantum channels is essential for practical implementation of quantum communication. Time-division multiplexing is an approach…
Spectral compression of single photons
Jonathan Lavoie, John M. Donohue, Logan G. Wright +2
Photons are critical to quantum technologies since they can be used for virtually all quantum information tasks: in quantum metrology, as the information carrier in photonic quantu…
Coherent ultrafast measurement of time-bin encoded photons
John M. Donohue, Megan Agnew, Jonathan Lavoie +1
Time-bin encoding is a robust form of optical quantum information, especially for transmission in optical fibers. To read out the information, the separation of the time bins must…
Reliable Entanglement Verification
Juan Miguel Arrazola, Oleg Gittsovich, John Matthew Donohue +3
Any experiment attempting to verify the presence of entanglement in a physical system can only generate a finite amount of data. The statement that entanglement was present in the…