Article
Physics, Multidisciplinary
Konstantin E. Dorfman, Shahaf Asban, Bing Gu, Shaul Mukamel
Summary: Optical interferometry is crucial in characterizing quantum states of light, with both linear and nonlinear interferences providing insights into light statistics and light-matter interactions. Nonlinear spectroscopic signals detected through interferometry can enhance the measurement accuracy of matter susceptibilities. The Hong-Ou-Mandel two-photon interferometer demonstrates the potential for achieving entanglement-enhanced resolution with existing optical technology.
COMMUNICATIONS PHYSICS
(2021)
Article
Computer Science, Artificial Intelligence
Mohammed Y. Abbass, Ki-Chul Kwon, Nam Kim, Safey A. Abdelwahab, Fathi E. Abd El-Samie, Ashraf A. M. Khalaf
Summary: This paper proposes an efficient object tracking algorithm that adaptively represents the object appearance using CNN-based features and a sparse measurement matrix. It achieves real-time tracking with substantially better performance in terms of robustness, accuracy, and efficiency compared to state-of-the-art techniques on challenging video datasets.
ARTIFICIAL INTELLIGENCE REVIEW
(2021)
Article
Physics, Multidisciplinary
Evan Meyer-Scott, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, Christine Silberhorn
Summary: This study demonstrates the scalable generation of multiphoton entangled states by utilizing active feed-forward and multiplexing, increasing the generation rates and facilitating practical multiphoton protocols for photonic quantum technologies.
PHYSICAL REVIEW LETTERS
(2022)
Review
Quantum Science & Technology
Chih-Sung Chuu, Chun-Yuan Cheng, Chih-Hsiang Wu, Cheng-Yeh Wei, Sheng-Yao Huang, Yen-Ru Chen, Shih-Wen Feng, Chun-Yao Yang
Summary: Purification of single and entangled photons is crucial for restoring quantum states and enhancing the performance of quantum technologies. Wavepacket shaping is an effective tool for manipulating the wavefunctions of single and entangled photons. By modulating the emission from optically excited quantum dots, multiphoton emission can be eliminated, and two-photon interference and polarization entanglement can be restored, with potential applications in long-distance quantum communication and linear optical quantum computation.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Physics, Multidisciplinary
Lynden K. Shalm, Yanbao Zhang, Joshua C. Bienfang, Collin Schlager, Martin J. Stevens, Michael D. Mazurek, Carlos Abellan, Waldimar Amaya, Morgan W. Mitchell, Mohammad A. Alhejji, Honghao Fu, Joel Ornstein, Richard P. Mirin, Sae Woo Nam, Emanuel Knill
Summary: With the advancement of loophole-free Bell tests, a new class of device-independent random number generators has been developed, allowing for certified output randomness without the need for detailed modeling of quantum devices. The research team created a spot-checking protocol that consumes only uniform bits and generates more certified output bits than consumed input bits.
Article
Engineering, Civil
Xiaomeng Cao, Jian Lan, X. Rong Li, Yu Liu
Summary: This paper introduces a novel approach for automotive radar-based extended object tracking, which jointly estimates the kinematic state and extension of a vehicle, using a rectangular shape to describe the vehicle and partitioning the area to simplify the scattering center distribution modeling. The proposed method demonstrates its effectiveness through simulated and real data.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Optics
Cyril Torre, Alex McMillan, Jorge Monroy-Ruz, Jonathan C. F. Matthews
Summary: The study demonstrates the use of two-color entanglement interferometry for precise evaluation of thickness variations in a semi-transparent sample, with the precision and dynamic range of the microscope controlled by adjusting the wavelength separation of the entangled photon pairs.
Article
Multidisciplinary Sciences
Hugo Defienne, Patrick Cameron, Bienvenu Ndagano, Ashley Lyons, Matthew Reichert, Jiuxuan Zhao, Andrew R. Harvey, Edoardo Charbon, Jason W. Fleischer, Daniele Faccio
Summary: The authors introduce a pixel super-resolution approach based on measuring the full spatially-resolved joint probability distribution of spatially-entangled photons, and improve pixel resolution by a factor two. This technique enables retrieval of spatial information lost due to undersampling and can benefit any full-field imaging system limited by the sensor spatial resolution in quantum imaging schemes.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Applied
Stephen M. Durbin
Summary: This proposal presents a promising approach for direct detection of quantum entanglement in solid state materials using entangled particles. By applying Hong-Ou-Mandel interferometry at an x-ray synchrotron source, x-rays in fully entangled N00N states can be generated. The entangled x-ray biphotons can be separated from the single photon background by diffraction from an analyzer crystal, resulting in intense beams suitable for characterizing quantum materials.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Multidisciplinary Sciences
Byoung S. Ham
Summary: A novel method of macroscopically entangled light-pair generation using wave nature of photons for coherent field phase control is proposed. The method demonstrates a deterministically controllable nonclassical phenomenon with phase sensitive anticorrelation between input coherent fields.
SCIENTIFIC REPORTS
(2021)
Article
Quantum Science & Technology
Ahmad Salmanogli
Summary: This article focuses on the entanglement phenomenon in quantum physics and its nonlinearity property. It presents a unique approach to create entangled microwave photons using the third-order nonlinearity effect in a cryogenic low-noise amplifier (LNA). The study shows that the designed circuit with transistor third-order nonlinearity can generate entangled microwave photons at low intrinsic transconductance and minimized noise figure (NF).
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Optics
Konstantin Tiurev, Pol Llopart Mirambell, Mikkel Bloch Lauritzen, Martin Hayhurst Appel, Alexey Tiranov, Peter Lodahl, Anders Sondberg Sorensen
Summary: The study analyzes a scheme using a single solid-state quantum emitter to generate multiphoton entangled states and develops a mathematical framework to evaluate the fidelity of the generated state. It theoretically investigates the impact of imperfections on time-bin encoded Greenberger-Horne-Zeilinger and one-dimensional cluster states, covering both fundamental limitations and technological imperfections. The devised framework is applicable to a variety of quantum emitters, including semiconductor quantum dots, defect centers in solids, and atoms in cavities.
Article
Multidisciplinary Sciences
Gaurav Nirala, Siva T. Pradyumna, Ashok Kumar, Alberto M. Marino
Summary: The ability to encode and transmit information using the temporal and spatial degrees of freedom of quantum states of light is crucial for an efficient quantum network. However, there is still a lack of control required to fully utilize the high dimensionality of the spatial degree of freedom. In this study, we encode information in the spatial correlations of entangled twin beams, taking advantage of their dependence on the angular spectrum of the pump for four-wave mixing. We demonstrate that the encoded information can only be extracted through joint spatial measurements of the twin beams, without modifying the temporal quantum correlations.
Article
Materials Science, Multidisciplinary
Tianxuan Feng, Shuyuan Zhang, Tong Wu, Zhiying Song, Lijing Li
Summary: This research presents an innovative method for producing high-quality entangled photon pairs by compensating for birefringence walk-off using a wedge-shaped nonlinear crystal. The experiment demonstrates that this method can generate entangled photon pairs with a high degree of entanglement, laying the foundation for the development of practical quantum technologies.
Article
Multidisciplinary Sciences
Christian Schimpf, Marcus Reindl, Daniel Huber, Barbara Lehner, Saimon F. Covre Da Silva, Santanu Manna, Michal Vyvlecka, Philip Walther, Armando Rastelli
Summary: Semiconductor quantum dots exhibit excellent performance in quantum information transfer, achieving ultra-low multi-photon emission probability and high fidelity quantum key distribution. Experimental results indicate that quantum dot light sources can be used for entanglement-based quantum key distribution and quantum networks.
Article
Physics, Multidisciplinary
Daniel Llewellyn, Yunhong Ding, Imad I. Faruque, Stefano Paesani, Davide Bacco, Raffaele Santagati, Yan-Jun Qian, Yan Li, Yun-Feng Xiao, Marcus Huber, Mehul Malik, Gary F. Sinclair, Xiaoqi Zhou, Karsten Rottwitt, Jeremy L. O'Brien, John G. Rarity, Qihuang Gong, Leif K. Oxenlowe, Jianwei Wang, Mark G. Thompson
Correction
Physics, Multidisciplinary
Daniel Llewellyn, Yunhong Ding, Imad I. Faruque, Stefano Paesani, Davide Bacco, Raffaele Santagati, Yan-Jun Qian, Yan Li, Yun-Feng Xiao, Marcus Huber, Mehul Malik, Gary F. Sinclair, Xiaoqi Zhou, Karsten Rottwitt, Jeremy L. O'Brien, John G. Rarity, Qihuang Gong, Leif K. Oxenlowe, Jianwei Wang, Mark G. Thompson
Article
Optics
Giulia Marcucci, Davide Pierangeli, Pepijn W. H. Pinkse, Mehul Malik, Claudio Conti
Article
Physics, Applied
David J. Starling, Jacob Poirier, Michael Fanto, Jeffrey A. Steidle, Christopher C. Tison, Gregory A. Howland, Stefan F. Preble
PHYSICAL REVIEW APPLIED
(2020)
Article
Quantum Science & Technology
Natalia Herrera Valencia, Vatshal Srivastav, Matej Pivoluska, Marcus Huber, Nicolai Friis, Will McCutcheon, Mehul Malik
Article
Physics, Multidisciplinary
Sebastien Designolle, Vatshal Srivastav, Roope Uola, Natalia Herrera Valencia, Will McCutcheon, Mehul Malik, Nicolas Brunner
Summary: This study theoretically formalizes and experimentally demonstrates a notion of genuine high-dimensional quantum steering, showing that higher-dimensional quantum entanglement can lead to stronger steering. Simple two-setting steering inequalities are derived to certify the presence of genuine high-dimensional steering, based on the connection between steering and incompatibility of quantum measurements. The experimental violation of these inequalities using macropixel photon-pair entanglement certifies genuine high-dimensional steering, with a reported minimum Schmidt number of n = 15 for an entangled state in dimension d = 31.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Natalia Herrera Valencia, Vatshal Srivastav, Saroch Leedumrongwatthanakun, Will McCutcheon, Mehul Malik
Summary: This passage discusses the spatial structure of photons and its applications in quantum physics. Through experiments, it confirms entanglement between photon pairs and studies quantum correlations between different LG mode groups. The text also proposes precise measurement methods for high-dimensional entanglement certification.
Article
Multidisciplinary Sciences
Massimiliano Proietti, Joseph Ho, Federico Grasselli, Peter Barrow, Mehul Malik, Alessandro Fedrizzi
Summary: In this study, a new quantum conference key agreement protocol leveraging multipartite entanglement is demonstrated, achieving efficient key generation among multiple users in a network. The research establishes a secure key for encrypting and sharing data, showcasing the potential for future multiparty quantum information processing applications.
Article
Quantum Science & Technology
Mehul Malik, Elizabeth Agudelo, Ravi Kunjwal
Summary: Strict global immigration policies and the COVID-19 pandemic have created significant hurdles for the mobility of researchers, especially quantum researchers. High visa fees, difficulties in navigating foreign immigration systems, lack of family support, and targeted government policies have severely impacted their ability to cross physical and scientific borders. Implementing good practices on governmental, institutional, and societal levels can help overcome these challenges and ensure that quantum scientists can achieve their fullest potential.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Applied
Vatshal Srivastav, Natalia Herrera Valencia, Saroch Leedumrongwatthanakun, Will McCutcheon, Mehul Malik
Summary: This study presents an accurate and efficient characterization of photonic position-momentum entanglement, proposing the collected joint-transverse momentum amplitude (JTMA) and demonstrating its reconstruction using the 2Dp measurement method. By precisely understanding the collected JTMA, tailored high-dimensional entangled states can be generated and critical experimental parameters can be optimized. This research unlocks the potential of photonic position-momentum entanglement and lays the foundation for multimode entanglement-based quantum technologies.
PHYSICAL REVIEW APPLIED
(2022)
Article
Physics, Multidisciplinary
Vatshal Srivastav, Natalia Herrera Valencia, Will McCutcheon, Saroch Leedumrongwatthanakun, Sebastien Designolle, Roope Uola, Nicolas Brunner, Mehul Malik
Summary: The establishment of quantum nonlocal correlations is crucial for a robust and unconditionally secure quantum network. We introduce a test of quantum steering that utilizes high-dimensional entanglement to be noise robust and loss tolerant. Experimental results demonstrate the significant resource advantages of high-dimensional entanglement in terms of loss, noise, and measurement time for quantum steering.
Article
Physics, Multidisciplinary
Suraj Goel, Max Tyler, Feng Zhu, Saroch Leedumrongwatthanakun, Mehul Malik, Jonathan Leach
Summary: Efficient manipulation, sorting, and measurement of optical modes and single-photon states are achieved in this study. The researchers use a specially designed multiplane light converter to simultaneously and efficiently sort nonorthogonal, overlapping states of light encoded in the transverse spatial degree of freedom. This has implications for optimal image identification and classification in optical networks.
PHYSICAL REVIEW LETTERS
(2023)
Article
Quantum Science & Technology
Dylan Danese, Sabine Wollmann, Saroch Leedumrongwatthanakun, Will McCutcheon, Manuel Erhard, William N. Plick, Mehul Malik
Summary: We demonstrate the generation of unbalanced two-photon entanglement in the Laguerre-Gaussian (LG) transverse-spatial degree-of-freedom, and verify the coherence of the two photons using a twisted quantum eraser. This type of entanglement is likely to have a significant impact on quantum physicists.
AVS QUANTUM SCIENCE
(2023)
Article
Physics, Multidisciplinary
James Schneeloch, Richard J. Birrittella, Christopher C. Tison, Gregory A. Howland, Michael L. Fanto, Paul M. Alsing
Summary: In this work, a method is proposed to quantify genuine tripartite entanglement in continuous-variable states, and its effectiveness is demonstrated through an example.
PHYSICAL REVIEW RESEARCH
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Joseph Ho, Massimilliano Proiettil, Federico Grasselli, Peter Barrow, Mehul Malik, Alessandro Fedrizzi
Summary: The study demonstrates a proof-of-principle demonstration of four-party quantum conference agreement using photonic GHZ states transmitted in fiber, indicating the feasibility of multi-user entangled-based quantum key distribution beyond the two-party paradigm.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
