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Practical Limits on Integrated Squeezers
Devin J. Dean, Taewon Park, Lars S. Madsen +12
Recent experiments have demonstrated the successful generation and detection of moderately squeezed vacuum states with integrated photonics. However, in order to benefit from the r…
Mesoscopic ultrafast nonlinear optics -- The emergence of multimode quantum non-Gaussian physics
Ryotatsu Yanagimoto, Edwin Ng, Marc Jankowski +8
Over the last few decades, nonlinear optics has become significantly more nonlinear, traversing nearly a billionfold improvement in energy efficiency, with ultrafast nonlinear nano…
Single-Mode Squeezed Light Generation and Tomography with an Integrated Optical Parametric Oscillator
Taewon Park, Hubert S. Stokowski, Vahid Ansari +9
Quantum optical technologies promise advances in sensing, computing, and communication. A key resource is squeezed light, where quantum noise is redistributed between optical quadr…
Telecom networking with a diamond quantum memory
Eric Bersin, Madison Sutula, Yan Qi Huan +24
Practical quantum networks require interfacing quantum memories with existing channels and systems that operate in the telecom band. Here we demonstrate low-noise, bidirectional qu…
Quantum noise dynamics in nonlinear pulse propagation
Edwin Ng, Ryotatsu Yanagimoto, Marc Jankowski +2
The propagation of ultrafast pulses in dispersion-engineered waveguides, exhibiting strong field confinement in both space and time, is a promising avenue towards single-photon non…
Integrated Quantum Optical Phase Sensor
Hubert S. Stokowski, Timothy P. McKenna, Taewon Park +6
The quantum noise of light fundamentally limits optical phase sensors. A semiclassical picture attributes this noise to the random arrival time of photons from a coherent light sou…
Onset of non-Gaussian quantum physics in pulsed squeezing with mesoscopic fields
Ryotatsu Yanagimoto, Edwin Ng, Atsushi Yamamura +6
We study the emergence of non-Gaussian quantum features in pulsed squeezed light generation with a mesoscopic number (i.e., dozens to hundreds) of pump photons. Due to the strong o…
Broadband Parametric Downconversion as a Discrete-Continuum Fano Interaction
Ryotatsu Yanagimoto, Edwin Ng, Marc P. Jankowski +3
We introduce a theoretical framework based on Fano's theory of discrete-continuum interactions to analyze the quantum dynamics of broadband parametric downconversion (PDC) in the f…
Development of Quantum InterConnects for Next-Generation Information Technologies
David Awschalom, Karl K. Berggren, Hannes Bernien +32
Just as classical information technology rests on a foundation built of interconnected information-processing systems, quantum information technology (QIT) must do the same. A crit…
Experimental investigation of performance differences between Coherent Ising Machines and a quantum annealer
Ryan Hamerly, Takahiro Inagaki, Peter L. McMahon +20
Physical annealing systems provide heuristic approaches to solving NP-hard Ising optimization problems. Here, we study the performance of two types of annealing machines--a commerc…
Ground test of satellite constellation based quantum communication
Sheng-Kai Liao, Hai-Lin Yong, Chang Liu +22
Satellite based quantum communication has been proven as a feasible way to achieve global scale quantum communication network. Very recently, a low-Earth-orbit (LEO) satellite has…
Multidimensional mode-separable frequency conversion for high-speed quantum communication
Paritosh Manurkar, Nitin Jain, Michael Silver +5
Quantum frequency conversion (QFC) of photonic signals preserves quantum information while simultaneously changing the signal wavelength. A common application of QFC is to translat…
Experimental Passive Decoy-State Quantum Key Distribution
Qi-Chao Sun, Wei-Long Wang, Yang Liu +8
The decoy-state method is widely used in practical quantum key distribution systems to replace ideal single photon sources with realistic light sources by varying intensities. Inst…
Nonlinear interaction between two heralded single photons
T. Guerreiro, A. Martin, B. Sanguinetti +7
Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced application…
Upconversion single photon detection near 2 um
Guo-Liang Shentu, Xiu-Xiu Xia, Qi-Chao Sun +4
We have demonstrated upconversion detection at the single photon level in the 2 um spectral window using a pump wavelength near 1550nm, a periodically poled lithium niobate (PPLN)…
217 km long distance photon-counting optical time-domain reflectometry based on ultra-low noise up-conversion single photon detector
Guo-Liang Shentu, Qi-Chao Sun, Xiao Jiang +5
We demonstrate a photon-counting optical time-domain reflectometry with 42.19 dB dynamic range using an ultra-low noise up-conversion single photon detector. By employing the long…
Ultralow noise up-conversion detector and spectrometer at telecom band
Guo-Liang Shentu, Jason S. Pelc, Xiao-Dong Wang +5
We demonstrate upconversion single-photon detection for the 1550-nm band using a PPLN waveguide, long-wavelength pump, and narrowband filtering using a volume Bragg grating. We ach…
Interaction of Independent Single Photons based on Integrated Nonlinear Optics
Thiago Guerreiro, Enrico Pomarico, Bruno Sanguinetti +7
Photons are ideal carriers of quantum information, as they can be easily created and can travel long distances without being affected by decoherence. For this reason, they are well…
Experimental measurement-device-independent quantum key distribution
Yang Liu, Teng-Yun Chen, Liu-Jun Wang +12
Throughout history, every advance in encryption has been defeated by advances in hacking with severe consequences. Quantum cryptography holds the promise to end this battle by offe…
Downconversion quantum interface for a single quantum dot spin and 1550-nm single-photon channel
Jason S. Pelc, Leo Yu, Kristiaan De Greve +11
Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels. We implement a downconversion q…
Hong-Ou-Mandel dip using photon pairs from a PPLN waveguide
Qiang Zhang, Hiroki Takesue, Carsten Langrock +3
We experimentally observed a Hong-Ou-Mandle dip with photon pairs generated in a periodically poled reverse-proton-exchange lithium niobate waveguide with an integrated mode demult…
Distribution of Time-Energy Entanglement over 100 km fiber using superconducting single-photon detectors
Qiang Zhang, Hiroki Takesue, Sae Woo Nam +4
In this letter, we report an experimental realization of distributing entangled photon pairs over 100 km of dispersion-shifted fiber. In the experiment, we used a periodically pole…
Generation of 10-GHz clock sequential time-bin entanglement
Qiang Zhang, Carsten Langrock, Hiroki Takesue +3
This letter reports telecom-band sequential time-bin entangled photon-pair generation at a repetition rate of 10 GHz in periodically-poled reverse-proton-exchange lithium niobate w…
Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock
Qiang Zhang, Xiuping Xie, Hiroki Takesue +4
We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at a wavelength of 1.5…