Article
Optics
Chris D. White
Summary: Recently, an intriguing relationship known as the double copy has been discovered between theories like electromagnetism and gravity, potentially providing a new way to understand gravity. This discovery has practical applications in efficient calculation of gravitational observables and in simulating gravity using optical systems. Researchers in optics and/or condensed matter are encouraged to explore this fascinating correspondence at this opportune moment.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Computer Science, Artificial Intelligence
Jose D. Martin-Guerrero, Lucas Lamata
Summary: This tutorial provides an overview of Quantum Machine Learning (QML), a discipline that combines concepts from Machine Learning (ML), Quantum Computing (QC), and Quantum Information (QI). QC has experienced significant development with the involvement of large technological companies and the success of ML, making QML a major field for researchers working at the intersection of Physics, Mathematics, and Computer Science. QML methods can be classified into those that use ML in a quantum experimentation environment and those that utilize QC and QI to find alternative and improved solutions to data-driven problems, often resulting in considerable speedup and enhanced performances.
Review
Automation & Control Systems
Guofeng Zhang, Zhiyuan Dong
Summary: This tutorial provides a brief introduction to linear quantum control systems, covering various aspects such as mathematical models, control theory concepts, quantum Gaussian states, quantum Kalman filter, system response, and coherent feedback control. It encompasses important concepts and experimental applications related to quantum information science.
ANNUAL REVIEWS IN CONTROL
(2022)
Article
Optics
Matthias Kizmann, Andrey S. Moskalenko, Alfred Leitenstorfer, Guido Burkard, Shaul Mukamel
Summary: Electro-optic sampling is a new quantum technique that allows measurements of electric field fluctuations on subcycle time scales. By imprinting the fluctuations of a terahertz field onto the polarization properties of an ultrashort probe pulse, the statistics of the time-domain signal can be calculated, taking into account the quantum nature of the electric fields. The electro-optic process is described using a microscopic quantum theory, and the quantum response of the nonlinear medium is characterized by interactions mediated by terahertz vacuum fluctuations.
LASER & PHOTONICS REVIEWS
(2022)
Review
Quantum Science & Technology
Taofiq K. Paraiso, Robert Woodward, Davide G. Marangon, Victor Lovic, Zhiliang Yuan, Andrew J. Shields
Summary: Quantum communications is the art of exchanging and manipulating information using the laws of quantum mechanics, with applications ranging from quantum computing to cryptographic systems. Developing viable technologies meeting stringent requirements remains a challenge, but recent advances in laser modulation technologies have enabled the development of efficient and versatile light sources for quantum communications, particularly in quantum key distribution.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Optics
Shang-Yu Ren, Wei Yan, Lan-Tian Feng, Yang Chen, Yun-Kun Wu, Xiao-Zhuo Qi, Xiao-Jing Liu, Yu-Jie Cheng, Bo-Yu Xu, Long-Jiang Deng, Guang-Can Guo, Lei Bi, Xi-Feng Ren
Summary: The feasibility of nonreciprocal photonic devices in the quantum world has been investigated. A single-photon non-reciprocal dynamical transmission experiment using an on-chip silicon nitride-based magneto-optical isolator has been performed, achieving a measured isolation ratio of 12.33 dB. The functionality of the on-chip isolator has been proven, and the quantum coherence of the passing single photons has been verified. This work will contribute to the development of on-chip nonreciprocal photonic devices within integrated quantum circuits and introduce novel phenomena in quantum information processes.
LASER & PHOTONICS REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Junliang Wang, Hermann Edlbauer, Aymeric Richard, Shunsuke Ota, Wanki Park, Jeongmin Shim, Arne Ludwig, Andreas D. Wieck, Heung-Sun Sim, Matias Urdampilleta, Tristan Meunier, Tetsuo Kodera, Nobu-Hisa Kaneko, Hermann Sellier, Xavier Waintal, Shintaro Takada, Christopher Bauerle
Summary: This research reports the observation of single-photon partitioning during the synchronous shuttling process of a pair of single electrons through a surface acoustic wave, demonstrating the repulsion predominantly caused by Coulomb interaction. This experiment marks an important milestone in realizing controlled-phase gates for in-flight quantum manipulations.
NATURE NANOTECHNOLOGY
(2023)
Article
Optics
Seongjin Hong, Junaid ur Rehman, Yong-Su Kim, Young-Wook Cho, Seung-Woo Lee, Su-Yong Lee, Hyang-Tag Lim
Summary: This study investigates a strategy to achieve the best practical sensitivity by optimizing both mode-amplitudes of multi-mode N00N states and a split ratio of a multi-mode beam splitter, and experimentally demonstrates its effectiveness.
LASER & PHOTONICS REVIEWS
(2022)
Article
Multidisciplinary Sciences
Julian Heckoetter, Valentin Walther, Stefan Scheel, Manfred Bayer, Thomas Pohl, Marc Assmann
Summary: Researchers demonstrated the generation and control of strong exciton interactions in cuprous oxide semiconductors by producing two distinct quantum states of Rydberg excitons through two-color pump-probe experiments. This led to the emergence of strong spatial correlations and an inter-state Rydberg blockade over remarkably large distances. The semiconductor excitons exhibited universal properties dependent on the interaction potential shape, indicating vastly extended-range and power-law character.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Ryotaro Konoike, Akio Yoshizawa, Shu Namiki, Kazuhiro Ikeda
Summary: We studied a 32 x 32 silicon photonic switch that can be used as a programmable multiport interferometer, with stability suitable for both classical and quantum photonic applications. The experimental results demonstrate that our optical circuit has a wide range of potential applications in classical and quantum photonic processors based on a multiport input-output interference design.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Massimo Frigerio, Claudio Destri, Stefano Olivares, Matteo G. A. Paris
Summary: This tutorial thoroughly illustrates the phenomena of quantum steering, specifically in the context of Gaussian states and their connection with P-nonclassicality. The strong and weak forms of nonclassical steering are discussed, as well as their relationship with entanglement and the formulation of invariant forms with respect to local Gaussian unitary operations. It is shown that EPR steering coincides with nonclassical steering for two-mode squeezed thermal states.
Article
Physics, Multidisciplinary
Fan Yang, Mads M. Lund, Thomas Pohl, Peter Lodahl, Klaus Molmer
Summary: Researchers have presented a method to classify quantum fields by using a pair of two-level emitters coupled to a waveguide, which can scatter the single and two-photon components of an input pulse into orthogonal temporal modes. The method achieves a high fidelity and can be used to construct logic elements.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Applied
Shasha Zheng, Zhenyu Wang, Yipu Wang, Fengxiao Sun, Qiongyi He, Peng Yan, H. Y. Yuan
Summary: Nonlinear magnonics studies the nonlinear interaction between magnons and other physical platforms to generate novel magnon states for information processing. In this Tutorial, the nonlinear interactions of magnons in pure magnetic systems and hybrid systems are introduced, and the exotic magnonic phenomena generated by these interactions are shown.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
M. Pejic, Z. Przulj, D. Chevizovich, N. Lazarides, G. P. Tsironis, Z. Ivic
Summary: We study the quantum features of electromagnetic radiation in a one-dimensional superconducting quantum metamaterial and find the emergence of bound states of single-photon qubits. This discovery indicates the potential application of controlling photon transport in artificial media based on superconducting qubits.
Article
Optics
Barak Hadad, Sahar Froim, Erez Yosef, Raja Giryes, Alon Bahabad
Summary: This tutorial provides a fundamental introduction to the utilization of deep learning in optics, catering specifically to newcomers, covering essential concepts, surveying the field, and providing guidelines for creating and deploying artificial neural network architectures tailored to optical problems.
Article
Optics
R. Finkelstein, G. Winer, D. Z. Koplovich, O. Arenfrid, T. Hoinkes, G. Guendelman, M. Netser, E. Poem, A. Rauschenbeutel, B. Dayan, O. Firstenberg
Summary: This study fabricates an extremely thin optical fiber supporting a super-extended mode, demonstrating fast and coherent interactions with thermal atoms, and showing potential for observing quantum nonlinear optics phenomena.
Article
Multidisciplinary Sciences
Or Katz, Roy Shaham, Ofer Firstenberg
Summary: This study demonstrates a coherent interface between light and noble-gas spins mediated by alkali atoms, showing optical excitation of noble-gas spins and observing coherent back action on light. The experiment achieved a record two-photon linewidth of 5 +/- 0.7 mHz above room temperature, indicating a 1-minute coherence time, showcasing bidirectional coupling between light and noble-gas spins.
Article
Physics, Multidisciplinary
O. Davidson, R. Finkelstein, E. Poem, O. Firstenberg
Summary: An efficient generation method of narrowband single photons compatible with rubidium D2 line is realized, using spatially-multiplexed heralded source based on four-wave mixing in hot rubidium vapor. The generated single photons exhibit high rate, low noise, and indistinguishability, with a five-fold tunability in temporal width demonstrated. The experimental results are well supported by a theoretical model.
NEW JOURNAL OF PHYSICS
(2021)
Article
Physics, Applied
A. Pick, E. S. Matekole, Z. Aqua, G. Guendelman, O. Firstenberg, J. P. Dowling, B. Dayan
Summary: By using moderate nonlinearity, specifically a nonlinear router, it is possible to boost photonic quantum computing and reduce resource overhead. This can improve the success probability of entangling operations in fault-tolerant MBQC even with only moderate nonlinearity.
PHYSICAL REVIEW APPLIED
(2021)
Article
Multidisciplinary Sciences
Yahel Horowicz, Or Katz, Oren Raz, Ofer Firstenberg
Summary: Phase transitions are emergent phenomena driven by microscopic interactions that lead a system into a collectively ordered phase. In the system of warm cesium spins driven by linearly polarized light, a second-order phase transition accompanied by critical behavior was observed. The study demonstrates the power-law dependence of magnetization and divergence of susceptibility near the phase boundaries, and a critical slowdown of spin response time out of equilibrium.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Physics, Multidisciplinary
R. Shaham, O. Katz, O. Firstenberg
Summary: In this study, we achieved strong coherent coupling between noble-gas spins and optically accessible spins of an alkali-metal vapour through the accumulation of stochastic spin-exchange collisions. The coupling strength obtained was ten times higher than the decay rate and we were able to actively control the coupling using an external magnetic field. This approach could lead to fast and efficient interfaces for noble-gas spins, enabling applications in quantum sensing and information.
Article
Multidisciplinary Sciences
Tomas Opatrny, Simon Brauer, Abraham G. Kofman, Avijit Misra, Nilakantha Meher, Ofer Firstenberg, Eilon Poem, Gershon Kurizki
Summary: We propose heat machines that are nonlinear, coherent, and closed systems composed of few field modes. These machines can transform thermal-state input into nonthermal output with controlled quantum fluctuations, providing an output with reduced uncertainty that may be useful for sensing or communications in the quantum domain. They can be realized in optomechanical cavities or cold gases where interactions between photons or atoms are utilized.
Article
Quantum Science & Technology
Or Katz, Marko Cetina, Christopher Monroe
Summary: Trapped atomic ion qubits or effective spins are a powerful quantum platform for quantum computation and simulation, featuring densely connected and efficiently programmable interactions between the spins. We propose and analyze a mechanism that extends the standard Molmer-Sorensen pairwise entangling gate and generates a controllable and programmable coupling between N spins of trapped ions. We demonstrate that spin-dependent optical parametric drives can generate a coordinate transformation of the collective ion motion, resulting in a nonlinear coupling between the spins. We provide a simple framework for constructing high-order spin Hamiltonians and gates, considering the effect of multiple modes of motion, and evaluate their performance under realistic conditions.
Article
Optics
Haim Nakav, Ran Finkelstein, Lee Peleg, Nitzan Akerman, Roee Ozeri
Summary: This study investigates the impact of fast noise on the fidelity of one- and two-qubit gates in a trapped-ion system and proposes a parameter to estimate the performance of these operations. It can provide guidance for the design of quantum hardware platforms and gates to improve their fidelity.
Article
Optics
Or Katz, Roy Shaham, Eran Reches, Alexey Gorshkov, Ofer Firstenberg
Summary: This article outlines and characterizes methods for mapping the state of photons onto collective states of noble-gas spins, which are long-lived but optically inaccessible. The mapping is achieved through coherent spin-exchange interaction arising from random collisions with alkali vapor.
Article
Quantum Science & Technology
Or Katz, Roy Shaham, Ofer Firstenberg
Summary: An ensemble of noble-gas nuclear spins is a unique quantum system that can maintain coherence for long periods of time at room temperature and above. By colliding with alkali-metal atoms, these spins can interface with other quantum systems while preserving their coherence. This allows for efficient, controllable, and deterministic entanglement and exchange of excitations.
Proceedings Paper
Engineering, Electrical & Electronic
A. Pick, E. S. Matekole, Z. Aqua, G. Guendelman, O. Firstenberg, J. P. Dowling, B. Dayan
Summary: A new pathway towards fault-tolerant photonic quantum computing is proposed in this study, using moderate nonlinearity to improve elementary computation operations and potentially reducing the resource overhead in large-scale computations by three orders of magnitude.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
