Results 41 to 50 of about 24,700 (193)

Coherent quantum phase slip [PDF]

, 2012
A hundred years after discovery of superconductivity, one fundamental prediction of the theory, the coherent quantum phase slip (CQPS), has not been observed.
A Bezryadin, A Johansson, A Wallraff, AA Abdumalikov, AD Zaikin, AM Finkel’stein, AM Hriscu, AM Hriscu, B Sacépé, B Sacépé, D. Shahar, DV Averin, J. S. Tsai, JE Mooij, JE Mooij, K Arutyunov, K Arutyunov, K. Yu. Arutyunov, KA Matveev, L. B. Ioffe, M Tinkham, M Zgirski, MV Feigel'man, MV Feigel'man, MV Feigel'man, N Giordano, O Astafiev, O. Cohen, O. V. Astafiev, S. Kafanov, TT Hongisto, VE Manucharyan, WA Little, Yu. A. Pashkin   +33 more
core   +1 more source

Optimization of MKID Noise Performance Via Readout Technique for Astronomical Applications [PDF]

, 2010
Detectors employing superconducting microwave kinetic inductance detectors (MKIDs) can be read out by measuring changes in either the resonator frequency or dissipation. We will discuss the pros and cons of both methods, in particular, the readout method
Anastasios Vayonakisa, Benjamin A. Mazine, Henry G. Leduc, Henry G. Leducc, Hien T. Nguyenc, Jack Sayersc, James A. Schlaerthb, Jason Glennb, Jiansong Gaod, John E. Vaillancourtf, Jonas Zmuidzinas, Matt I. Hollistera, Nicole Czakon, Nicole G. Czakona, Omid Noroozian, Omid Norooziana, Peter K. Dayc, Philip R. Wilsonc, Phillip R. Maloneyb, Ran P. Duana, Seth Siegela, Sunil R. Golwalaa, Thomas P. Downesa   +22 more
core   +3 more sources

Open-loop tunable resonators and filters with constant bandwidth

IET Microwaves, Antennas & Propagation, 2012
This study presents a compact novel design for achieving constant bandwidth tunable filters with wide tuning range. A method for linearising the Q-factor against frequency is proposed. A modified coupling structure is introduced to compensate for variations in filtering characteristic across the theoretical 50% tuning range of the filter. Filter design
L. Athukorala, D. Budimir
openaire   +1 more source

Generalization of a 3-D resonator model for the simulation of spherical enclosures [PDF]

, 2001
A rectangular enclosure has such an even distribution of resonances that it can be accurately and efficiently modelled using a feedback delay network. Conversely, a non rectangular shape such as a sphere has a distribution of resonances that challenges ...
Dutilleux, Pierre, Rocchesso, Davide
core   +6 more sources

Realization of microwave quantum circuits using hybrid superconducting-semiconducting nanowire Josephson elements [PDF]

, 2015
We report the realization of quantum microwave circuits using hybrid superconductor-semiconductor Josephson elements comprised of InAs nanowires contacted by NbTiN.
Akhmerov, A. R., Bakkers, E. P. A. M., Bruno, A., de Lange, G., DiCarlo, L., Geresdi, A., Plissard, S. R., van Heck, B., van Woerkom, D. J.   +8 more
core   +4 more sources

Dual Band Filter-Antenna with Fixed Low Band and Frequency-Agile High Band for Wireless Communications

Advanced Electromagnetics, 2020
This work proposes a design of compact filter-antenna with fixed and frequency-agile bands for wireless communications and cognitive radio (CR) systems.
H. A. Atallah
doaj   +1 more source

Design and Characterization of a Planar Motor Drive Platform Based on Piezoelectric Hemispherical Shell Resonators

Actuators, 2021
In this study, a planar ultrasonic motor platform is presented that uses three half-side excited piezoelectric hemispherical shell resonators. To understand the working principle and the harmonic vibration behavior of the piezoelectric resonator, the ...
Frank Schiele, Bernd Gundelsweiler
doaj   +1 more source

Measurement-based quantum control of mechanical motion

, 2018
Controlling a quantum system based on the observation of its dynamics is inevitably complicated by the backaction of the measurement process. Efficient measurements, however, maximize the amount of information gained per disturbance incurred.
A Kubanek, A Szorkovszky, A Vinante, AA Clerk, AC Doherty, AC Doherty, AC Doherty, Albert Schliesser, AM Jayich, B Abbott, C Genes, C Sayrin, D Kleckner, David Mason, DJ Wilson, DV Martynov, E Gavartin, ED Black, HM Wiseman, J Chan, J Thompson, J Zhang, J-M Courty, JB Clark, JD Teufel, JL Garbini, Junxin Chen, K Jacobs, KH Lee, M Aspelmeyer, M Gorodetksy, M Poggio, M Ringbauer, Massimiliano Rossi, MD LaHaye, NS Kampel, P Bushev, PF Cohadon, R Vijay, RW Peterson, S Mancini, S Schreppler, S Weis, SG Hofer, SG Hofer, T Li, TP Purdy, U Leonhardt, V Jain, VB Braginsky, W Wieczorek, WHP Nielsen, WP Bowen, Y Chu, Y Tsaturyan, Yeghishe Tsaturyan   +55 more
core   +1 more source

Strongly Enhanced Sensitivity in Planar Microwave Sensors Based on Metamaterial coupling

, 2017
Limited sensitivity and sensing range are arguably the greatest challenges in microwave sensor design. Recent attempts to improve these properties have relied on metamaterial- (MTM-) inspired open-loop resonators (OLRs) coupled to transmission lines (TLs)
Abdolrazzaghi, Mohammad, Daneshmand, Mojgan, Iyer, Ashwin K.   +2 more
core   +1 more source

Scattering Experiments with Microwave Billiards at an Exceptional Point under Broken Time Reversal Invariance

, 2014
Scattering experiments with microwave cavities were performed and the effects of broken time-reversal invariance (TRI), induced by means of a magnetized ferrite placed inside the cavity, on an isolated doublet of nearly degenerate resonances were ...
Bittner, S., Dietz, B., Harney, H. L., Miski-Oglu, M., Richter, A., Schäfer, F.   +5 more
core   +1 more source