Article
Materials Science, Ceramics
R. Marcelli, G. Capoccia, G. M. Sardi, G. Bartolucci, B. Margesin, J. Iannacci, G. Tagliapietra, F. Giacomozzi, E. Proietti
Summary: In this paper, the use of metamaterial and microsystem concepts for studying resonating structures in narrowband microwave signal processing is explored. U-shaped resonators and triangular Sierpinski structures are designed and tested for potential applications in satellite communications at the K-Band frequencies of around 20 GHz and 26 GHz. The research discusses the metamaterial nature and electrical performance of these structures, including the possibility of implementing U-shaped resonators using RF MEMS. The paper also presents the novelty of achieving a tunable narrow-band filter in an all-passive environment by embedding switches in the resonator, and examines the advantages and drawbacks of this solution.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Antonio Vettoliere, Carmine Granata
Summary: High-sensitivity ac current sensors based on a superconducting quantum interference device have been designed and characterized, with the consideration of both parallel and series double-washer schemes. By measuring key features and parameters, such as flux-to-voltage characteristic and magnetic field spectral noise, the advantages and drawbacks of both configurations have been examined.
APPLIED SCIENCES-BASEL
(2022)
Article
Computer Science, Information Systems
Shimaa A. M. Soliman, Eman M. M. El-Desouki, Shaza M. M. El-Nady, Anwer S. Abd El-Hameed
Summary: In this research, the reduction of radar cross-section (RCS) is achieved by adding a novel single layer artificial magnetic conductor (AMC) based metasurface unit cells that rely on polarization. The proposed unit cell demonstrates a wide band phase difference and is combined in a chessboard configuration with four AMC block arrays. Experimental results show significant reduction in backscattered energy and good RCS reduction capability.
Article
Materials Science, Multidisciplinary
Tallha Akram, S. M. Riazul Islam, Syed Rameez Naqvi, Khursheed Aurangzeb, M. Abdullah-Al-Wadud, Atif Alamri
Summary: The resistance versus temperature characteristics of superconducting films have been studied for decades and have recently gained increased attention due to the electromagnetic metamaterial strategy. A framework using artificial neural networks to approximate resistance-temperature curves was proposed, and a detailed comparison of the accuracy of different architectures was carried out. The study demonstrated that the mean-squared error between the approximated and physically measured curves is negligible, allowing for the extrapolation of these curves over a wide range of parameters using the proposed framework.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Zohreh Vafapour, Mitra Dutta, Michael A. Stroscio
Summary: The emergence of planar metamaterials has enabled the development of devices with unprecedented electromagnetic properties and functionality. This paper introduces a novel class of superconducting PrMM and simulations show potential applications in temperature sensors, thermo-optical modulators, and magnetic switch devices.
IEEE SENSORS JOURNAL
(2021)
Review
Nanoscience & Nanotechnology
Ying Li, Wei Li, Tiancheng Han, Xu Zheng, Jiaxin Li, Baowen Li, Shanhui Fan, Cheng-Wei Qiu
Summary: This review provides a unified perspective on heat transfer control, summarizing complementary paradigms towards the manipulation of physical parameters at different length scales. Thermal conduction and radiation are emphasized in the first two parts, while the third part discusses efforts to actively introduce heat sources or tune material parameters with multiphysical effects.
NATURE REVIEWS MATERIALS
(2021)
Review
Optics
Alexander Dorodnyy, Jasmin Smajic, Juerg Leuthold
Summary: Mie scattering is used to manipulate electromagnetic fields for various applications such as strong resonant enhancement, perfect absorption of radiation, and polarization/wavelength selectivity. Recent applications include light spectrum control, detection, non-linear effects enhancement, and emission. It is also demonstrated that a periodic arrangement of Mie scatterers can lead to a significant absorption enhancement in weakly absorbing layers.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Yaotian Zhao, Jinlong Xiang, An He, Yu He, Xuhan Guo, Yikai Su
Summary: This paper introduces the importance of polarization manipulation in photonic integrated circuits and its wide range of applications in optical communication, nonlinear optics, and quantum optics. By integrating subwavelength-structured metamaterials on optical waveguides using nanofabrication techniques, unprecedented optical manipulation capabilities beyond classical waveguide-based architectures can be achieved. The design of dielectric metamaterials composed of nanoholes and nanoslots allows for competitive performance of key polarization components while maintaining ultra-compact coupling regions. The unique properties of metamaterials provide powerful tools for on-chip polarization manipulation and offer new possibilities for the development of compact and high-performance photonic integrated circuits.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Francisco J. Diaz-Fernandez, Javier Marti, Carlos Garcia-Meca
Summary: Invisibility cloaks are a significant development in the field of metamaterials. While most efforts have been focused on improving the effectiveness of cloaks, little attention has been paid to the development of efficient techniques for detecting invisibility devices. This study proposes a different approach using diffraction tomography to enhance efficiency in detecting and obtaining images of invisibility cloaks, leading to improved sensitivity and potential application in sound cloaks.
LASER & PHOTONICS REVIEWS
(2023)
Article
Nanoscience & Nanotechnology
Chao Chen, Tao Lin, Jianteng Niu, Yiming Sun, Liu Yang, Wang Kang, Na Lei
Summary: This study proposes controlling magnetic skyrmions using electric-field-excited surface acoustic waves in neuromorphic computing device structures. The micromagnetic simulations show that the number of created skyrmions increases with the amplitude of the surface acoustic waves. The efficiency of skyrmion creation is systematically investigated with a wide range of magnetic parameters, and the optimal values are determined. The functionalities of short-term plasticity and long-term potentiation are demonstrated using a sequence of surface acoustic waves with different intervals.
Article
Engineering, Electrical & Electronic
Amir Youssefi, Itay Shomroni, Yash J. Joshi, Nathan R. Bernier, Anton Lukashchuk, Philipp Uhrich, Liu Qiu, Tobias J. Kippenberg
Summary: This experiment demonstrates the cryogenic electro-optical readout of a superconducting electromechanical circuit using a commercial titanium-doped lithium niobate modulator, achieving coherent spectroscopy and incoherent thermometry. Further optimization of the modulator design could reduce the added noise of the setup to levels similar to current semiconductor microwave amplifiers.
NATURE ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Francesco Borsoi, Grzegorz P. Mazur, Nick van Loo, Leo Bourdet, Kongyi Li, Svetlana Korneychuk, Alexandra Fursina, Ji-Yin Wang, Vukan Levajac, Elvedin Memisevic, Ghada Badawy, Sasa Gazibegovic, Kevin van Hoogdalem, Erik P. A. M. Bakkers, Leo P. Kouwenhoven, Sebastian Heedt, Marina Quintero-Perez, Michal P. Nowak
Summary: This study introduces a novel fabrication concept based on shadow walls, enabling in situ, selective, and consecutive depositions of superconductors and normal metals to form defect-free semiconducting-superconducting interfaces. The method allows for the realization of devices in a single shot, eliminating fabrication steps after the synthesis of the fragile semiconductor/superconductor interface. The cleanliness of the technique enables systematic studies of topological superconductivity in nanowires and the synthesis of advanced nano-devices based on a wide range of material combinations and geometries while maintaining high interface quality.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Ceramics
Poonam Lathiya, Jing Wang
Summary: The study focused on preparing Ni0.4Co0.25Zn0.35Fe2O4 ferrites with the addition of CuO dopants to enhance their magnetic properties, achieving high permeability and low magnetic loss for potential applications in RF and microwave devices. High relative permeability and low magnetic loss were achieved in the frequency range of 100-800 MHz, with the addition of CuO causing a significant increase in permeability. Moreover, the resonance frequency of the ferrites shifted to the GHz range with higher concentrations of CuO dopants.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Peter A. Beaucage, R. Bruce van Dover, Francis J. DiSalvo, Sol M. Gruner, Ulrich Wiesner
Summary: This study presents a solution to the challenge of synthesizing high-quality superconducting materials by demonstrating a novel synthesis route for superconductors with exceptional structure retention at high temperatures. The research also reveals a method for producing multiple different ordered-structure superconductors from a single triblock terpolymer, highlighting a fruitful convergence of soft and hard condensed matter science.
ADVANCED MATERIALS
(2021)
Article
Physics, Applied
Jose Alberto Nava Aquino, Rogerio de Sousa
Summary: Recent experiments have shown that the application of an external magnetic field in the range of 10-100 G can transform noise into a Lorentzian peak at ? = 0. A model based on independent impurity spin flips with coexisting cross and direct mechanisms of spin relaxation is proposed to explain these experiments. The model suggests that the application of an external magnetic field can reduce flux noise in qubits.
APPLIED PHYSICS LETTERS
(2023)
Article
Multidisciplinary Sciences
L. Cardani, F. Valenti, N. Casali, G. Catelani, T. Charpentier, M. Clemenza, I Colantoni, A. Cruciani, G. D'Imperio, L. Gironi, L. Gruenhaupt, D. Gusenkova, F. Henriques, M. Lagoin, M. Martinez, G. Pettinari, C. Rusconi, O. Sander, C. Tomei, A. Ustinov, M. Weber, W. Wernsdorfer, M. Vignati, S. Pirro, I. M. Pop
Summary: As the coherence times of superconducting circuits have increased, they have become a leading platform for quantum information processing, but further improvements are needed. Environmental radioactivity is a significant source of nonequilibrium quasiparticles, introducing time-correlated bursts in resonators and complicating quantum error correction. Operating in a lead-shielded cryostat underground reduces quasiparticle bursts by a factor of thirty, highlighting the importance of radiation abatement in future solid-state quantum hardware.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Applied
Daria Gusenkova, Martin Spiecker, Richard Gebauer, Madita Willsch, Dennis Willsch, Francesco Valenti, Nick Karcher, Lukas Gruenhaupt, Ivan Takmakov, Patrick Winkel, Dennis Rieger, Alexey V. Ustinov, Nicolas Roch, Wolfgang Wernsdorfer, Kristel Michielsen, Oliver Sander, Ioan M. Pop
Summary: The paper discusses a new fluxonium artificial atom where the signal-to-noise ratio continuously improves with increasing photon numbers up to around 200. Without the use of a parametric amplifier, high fidelities of 99% and 93% for feedback-assisted ground and excited state preparations were achieved at a photon number of 74. However, at higher photon numbers, leakage outside the qubit computational space limits the fidelity of quantum state preparation.
PHYSICAL REVIEW APPLIED
(2021)
Editorial Material
Physics, Applied
I. A. Golovchanskiy, N. N. Abramov, V. S. Stolyarov, A. A. Golubov, M. Yu. Kupriyanov, V. V. Ryazanov, A. V. Ustinov
Summary: This study demonstrates ultrastrong photon-to-magnon coupling in on-chip multilayered superconductor-ferromagnet-insulator structures, achieving coupling strength above 6 GHz and revealing a different hybrid polariton quasiparticle, the plasmon-magnon polariton, through the observed inapplicability of the Dicke quantum model.
PHYSICAL REVIEW APPLIED
(2021)
Article
Physics, Applied
I. Takmakov, P. Winkel, F. Foroughi, L. Planat, D. Gusenkova, M. Spiecker, D. Rieger, L. Gruenhaupt, A. V. Ustinov, W. Wernsdorfer, I. M. Pop, N. Roch
Summary: The study demonstrates the importance of discriminating quantum states of superconducting artificial atoms for quantum information processing, and shows how increasing the signal-field amplitude in the readout resonator can improve the signal-to-noise ratio and measurement strength. By using a unique dimer-Josephson-junction-array amplifier and the quantum nondemolition property of the granular aluminum fluxonium artificial atom, the research achieves fast detection of quantum jumps at relatively large photon numbers.
PHYSICAL REVIEW APPLIED
(2021)
Article
Multidisciplinary Sciences
Igor A. Golovchanskiy, Nikolay N. Abramov, Vasily S. Stolyarov, Martin Weides, Valery V. Ryazanov, Alexander A. Golubov, Alexey Ustinov, Mikhail Yu Kupriyanov
Summary: Combining superconducting, insulating, and ferromagnetic layers can realize on-chip hybrid magnonic systems with unprecedentedly strong coupling parameters, breaking the restriction of weak coupling strength between elemental particles and offering new opportunities in microwave superconducting spintronics for quantum technologies.
Article
Physics, Applied
I. N. Moskalenko, I. S. Besedin, I. A. Simakov, A. Ustinov
Summary: A superconducting fluxonium circuit utilizes a large inductance to suppress charge and flux sensitivity, with large and positive anharmonicity for better separation between qubit states. A tunable coupling scheme is proposed for implementing two-qubit gates, with performance evaluation through simulating fSim gates.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Applied
A. A. Leha, A. P. Zhuravel, A. Karpov, A. V. Lukashenko, A. V. Ustinov
Summary: A new method for visualizing the spatial structure of penetrating microwaves in planar superconducting macroscopic resonators is presented using a low-temperature laser scanning microscope. This method eliminates hardware limitations and enables study of the physics of superconducting metamaterials.
LOW TEMPERATURE PHYSICS
(2022)
Article
Physics, Applied
Benjamin W. Frazier, Thomas M. Antonsen, Steven M. Anlage, Edward Ott
Summary: In this study, we utilize a combination of programmable metasurfaces and deep learning networks to shape waves in complex reverberant electromagnetic environments. We demonstrate successful wavefront reconstruction and control, even in cases previously unseen by the deep learning algorithm.
PHYSICAL REVIEW APPLIED
(2022)
Article
Physics, Fluids & Plasmas
Shukai Ma, Thomas M. Antonsen, Steven M. Anlage
Summary: This study explores the statistical properties of wave chaotic systems of varying dimensionalities and realizations using photonic crystal (PC) defect waveguide graphs as a physical setting. The graphs constructed by joining waveguides possess distinct scattering properties at junctions and bends. The proposed system is compatible with silicon nanophotonic technology and introduces chaotic graph studies to a new community of researchers.
Article
Physics, Fluids & Plasmas
Lei Chen, Steven M. Anlage
Summary: By analyzing the distribution of poles and zeros of the scattering matrix, we studied the scattering phenomena in a simple quantum graph and gained insights into resonant effects and time delays. This has significant implications for the design and study of practical devices.
Article
Physics, Multidisciplinary
Shukai Ma, Thomas M. Antonsen, Steven M. Anlage, Edward Ott
Summary: Researchers have demonstrated a method that uses the high sensitivity of short-wavelength waves to enhance the computational power of machine learning (ML). By exploiting the sensitivity of short-wavelength waves to perturbations, they expanded the effective size of the ML system and improved its performance.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Physics, Fluids & Plasmas
Ethan Zack, Daimeng Zhang, Melissa Trepanier, Jingnan Cai, Tamin Tai, Nikos Lazarides, Johanne Hizanidis, Steven M. Anlage
Summary: The strong nonlinearity of a self-resonant radio-frequency superconducting-quantum-interference-device (SQUID) meta-atom is explored through intermodulation measurements. The dynamics of the device with zero and nonzero dc magnetic flux are studied, revealing different characteristics and predicting chaos in certain regimes. Understanding intermodulation in rf SQUID metamaterials is crucial for low-noise amplification of microwave signals and tunable filters.
Article
Materials Science, Multidisciplinary
Jan David Brehm, Paul Popperl, Alexander D. Mirlin, Alexander Shnirman, Alexander Stehli, Hannes Rotzinger, Alexey Ustinov
Summary: This study experimentally examines Anderson localization in a superconducting waveguide quantum electrodynamics system, artificially introducing frequency disorder and observing an exponential suppression of transmission coefficient. The localization length decreases with disorder strength, controlled by varying individual qubit frequencies, with results supported by a one-dimensional noninteracting model of coupled qubits and photons.
Article
Materials Science, Multidisciplinary
I. N. Moskalenko, I. S. Besedin, S. S. Seidov, M. Fistul, A. Ustinov
Summary: This study presents a detailed theoretical analysis of quantum beats of a single magnetic fluxon trapped in a high kinetic inductance two-cell SQUID. Quantum dynamics of the fluxon exhibit quantum beats from coherent quantum tunneling between the SQUID cells. Experimental setup using a three-cell SQUID allows for time-resolved measurements of fluxon quantum beats.
Article
Materials Science, Multidisciplinary
Ilya S. Besedin, Maxim A. Gorlach, Nikolay N. Abramov, Ivan Tsitsilin, Ilya N. Moskalenko, Alina A. Dobronosova, Dmitry O. Moskalev, Alexey R. Matanin, Nikita S. Smirnov, Ilya A. Rodionov, Alexander N. Poddubny, Alexey Ustinov
Summary: Recent research has demonstrated the construction of a one-dimensional topologically non-trivial quantum metamaterial using an array of superconducting qubits. Experimental observation of elementary excitations and confirmation of the topological origin of the model showcase the disorder-robust behavior and attractive photon-photon interactions in the system.
