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Superconducting fluxonium qubits show a highly tunable energy-level structure, with transition frequencies spanning from a few MHz to few GHz. This range is well-aligned to the operational frequencies of highly coherent micro- and…

Quantum Physics · Physics 2025-08-26 Roson Nongthombam , Anshika Ranjan , Amarendra K. Sarma , Vibhor Singh

We demonstrate an ultrafast reversible modulation of resonant terahertz (THz) response in strongly photoexcited metamaterials. The transient spectral-temporal response of the dipole transition ~1.6 THz exhibits a distinct non-monotonic…

Materials Science · Physics 2019-03-12 I. Chatzakis , L. Luo , J. Wang , N-H. Shen , T. Koschny , J. Zhou , C. M. Soukoulis

A single-photon switch is an important element for the building of scalable quantum networks. In this paper, we propose a feasible scheme for efficient single-photon switching. The proposed switch is controlled by a state of a qubit formed…

Quantum Physics · Physics 2020-12-14 Eugene Stolyarov

We demonstrate ultrafast resonance switching of terahertz metamaterials through optical excitation of radiation damaged silicon placed in the gap of single split gap ring resonator. We observe the dynamic switching OFF of the fundamental…

Quantum key distribution (QKD), a technology that enables perfectly secure communication, has evolved to the stage where many different protocols are being used in real-world implementations. Each protocol has its own advantages, meaning…

Quantum Physics · Physics 2018-09-14 G. L. Roberts , M. Lucamarini , J. F. Dynes , S. J. Savory , Z. L. Yuan , A. J. Shields

Time-varying networks, consisting of lumped elements, such as resistors, capacitors, and inductors, actively modulated in time, have introduced a host of novel wave phenomena and witnessed a remarkable development during recent years. This…

In this paper, we analyze the performance of an electro-optic modulator based on a single quantum dot strongly coupled to a nano-resonator, where electrical control of the quantum dot frequency is achieved via quantum confined Stark effect.…

Quantum Physics · Physics 2011-01-20 Arka Majumdar , Nicolas Manquest , Andrei Faraon , Jelena Vuckovic

Progress in high-performance computing demands significant advances in memory technology. Among novel memory technologies that promise efficient device operation on a sub-ns timescale, resistance switching between charge ordered phases of…

In this paper, a multi user Multi-Carrier Differential Chaos Shift Keying (MC-DCSK) modulation is presented. The system endeavors to provide a good trade-off between robustness, energy efficiency and high data rate, while still being…

Other Computer Science · Computer Science 2016-11-18 Georges Kaddoum , Francois-Dominique Richardson , Sarra Adouni , Francois Gagnon , Claude Thibeault

Fast cryogenic switches with ultra-low power dissipation are highly sought-after for control electronics of quantum computers, space applications and next generation logic circuits. However, existing high-frequency switches are often bulky,…

Superconductivity · Physics 2021-06-08 M. F. Ritter , A. Fuhrer , D. Z. Haxell , S. Hart , P. Gumann , H. Riel , F. Nichele

Information can be stored magnetically in antiferromagnets ultrafast since their characteristic times are on the picosecond scale. Various spin torques have proven to be important for efficient and high-speed magnetic memories. So far, this…

Strongly Correlated Electrons · Physics 2025-02-10 Asliddin Khudoyberdiev , Götz S. Uhrig

Using micromagnetics we demonstrate that the r.f. field produced by a spin valve can be used to reverse the magnetization in a magnetic nanoparticle. The r.f. field is generated using a current that specifically excites a uniform spin wave…

Materials Science · Physics 2009-11-13 K. Rivkin , J. Ketterson , W. Saslow

We present a new scheme for controlling the quantum state of a harmonic oscillator by coupling it to an anharmonic multilevel system (MLS) with first to second excited state transition frequency on-resonance with the oscillator. In this…

Absorbed power of nanoparticles during magnetic hyperthermia can be well determined from changes in the quality factor ($Q$ factor) of a resonator, in which the radiofrequency (RF) absorbent is placed. We present an order of magnitude…

Applied Physics · Physics 2019-07-17 I. Gresits , Gy. Thuróczy , O. Sági , I. Homolya , G. Bagaméry , D. Gajári , M. Babos , P. Major , B. G. Márkus , F. Simon

Networks of nonlinear resonators offer intriguing perspectives as quantum simulators for non-equilibrium many-body phases of driven-dissipative systems. Here, we employ photon correlation measurements to study the radiation fields emitted…

As computing power demands continue to grow, superconducting electronics present an opportunity to reduce power consumption by increasing the energy efficiency of digital logic and memory. A key milestone for scaling this technology is the…

Passive resonators have been widely used in MRI to manipulate RF field distributions. However, optimizing these structures using full-wave electromagnetic simulations is computationally prohibitive, particularly for large passive resonator…

Medical Physics · Physics 2025-09-18 Zhonghao Zhang , Ming Lu , Hao Liang , Zhongliang Zu , Yi Gu , Xiao Wang , Yuankai Huo , John C. Gore , Xinqiang Yan

Electromagnetic resonators are a versatile platform to harvest, filter and trap electromagnetic energy, at the basis of many applications from microwaves to optics. Resonators with a large intrinsic quality factor (Q) are highly desirable…

Optics · Physics 2020-02-04 Younes Radi , Alex Krasnok , Andrea Alú

Josephson junction-based qubits have been shown to be promising components for a future quantum computer. A network of these superconducting qubits will require quantum information to be stored in and transferred among them. Resonators made…

Superconductivity · Physics 2009-09-22 Z. E. Thrailkill , J. G. Lambert , R. C. Ramos

For the need of measurements focused in condensed matter physics and especially Bernoulli effect in superconductors we have developed an active resonator with dual operational amplifiers. A tunable high-Q resonator is performed in the…

Instrumentation and Detectors · Physics 2021-06-02 T. Mifune , T. M. Mishonov , N. S. Serafimov , I. M. Dimitrova , R. Popeski-Dimovski , L. Velkoska , E. G. Petkov , A. M. Varonov , A. Barone