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We present a scheme for the implementation of three qubit Grover's algorithm using four-level superconducting quantum interference devices (SQUIDs) coupled to a superconducting resonator. The scheme is based on resonant, off-resonant…

Quantum Physics · Physics 2015-06-02 Muhammad Waseem , Rizwan Ahmed , Muhammad Irfan , Shahid Qamar

We present a measurement protocol for a flux qubit coupled to a dc-Superconducting QUantum Interference Device (SQUID), representative of any two-state system with a controllable coupling to an harmonic oscillator quadrature, which consists…

Mesoscale and Nanoscale Physics · Physics 2008-08-18 I. Serban , B. L. T. Plourde , F. K. Wilhelm

A superconducting quantum interference device (SQUID) was prepared on a micron-sized single crystal using a selected growth domain of a thin film of $CeCoIn_5$ grown by molecular beam epitaxy. SQUID voltage oscillations of good quality were…

Strongly Correlated Electrons · Physics 2011-08-16 Oleksandr Foyevtsov , Fabrizio Porrati , Michael Huth

Recently, we have proposed the half-Josephson laser (HJL): a device that combines lasing with superconducting leads, providing a locking between the optical phase and the superconducting phase difference between the leads. In this work, we…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Frans Godschalk , Yuli V. Nazarov

We present measurements of an amplifier based on a dc superconducting quantum interference device (SQUID) with submicron Al-AlOx-Al Josephson junctions. The small junction size reduces their self-capacitance and allows for the use of…

Superconductivity · Physics 2015-05-19 M. P. DeFeo , P. Bhupathi , K. Yu , T. W. Heitmann , C. Song , R. McDermott , B. L. T. Plourde

We present a simple nanodevice that can operate in two modes: i) three-state memory and ii) reading device. The nanodevice is fabricated with an array of ordered triangular-shaped nanomagnets embedded in a superconducting thin film. The…

Superconductivity · Physics 2016-08-05 J. del Valle , A. Gomez , E. M. Gonzalez , M. R. Osorio , D. Granados , J. L. Vicent

We investigate the characteristics and noise performance of rf Superconducting Quantum Interference Devices (SQUIDs) by solving the corresponding Langevin equations numerically and optimizing the model parameters with respect to noise…

Superconductivity · Physics 2008-03-13 Reinhold Kleiner , Dieter Koelle , John Clarke

We measured the local magnetic response of a niobium thin film by applying a millitesla-scale AC magnetic field using a micron-scale field coil and detecting the response with a micron-scale pickup loop in a scanning superconducting quantum…

Superconductivity · Physics 2023-06-16 Logan Bishop-Van Horn , Eli Mueller , Kathryn A. Moler

We study a carbon nanotube quantum dot embedded into a SQUID loop in order to investigate the competition of strong electron correlations with proximity effect. Depending whether local pairing or local magnetism prevails, a superconducting…

Mesoscale and Nanoscale Physics · Physics 2012-02-16 Romain Maurand , Tobias Meng , Edgar Bonet , Serge Florens , Laëtitia Marty , Wolfgang Wernsdorfer

It is customary to use arrays of superconducting quantum interference devices (SQUIDs) for implementing magnetic field-tunable inductors. Here, we demonstrate an equivalent tunability in a (SQUID-free) array of single Al/AlOx/Al Josephson…

Superconductivity · Physics 2024-12-10 Roman Kuzmin , Nitish Mehta , Nicholas Grabon , Vladimir E. Manucharyan

We study a novel configuration for displacement detection consisting of a nanomechanical resonator coupled to both, a radio frequency superconducting interference device (RF SQUID) and to a superconducting stripline resonator. We employ an…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Eyal Buks , Stav Zaitsev , Eran Segev , Baleegh Abdo , M. P. Blencowe

Weyl semimetals for their exotic topological properties have drawn considerable attention in many research fields. When in combination with s-wave superconductors, the supercurrent can be carried by their topological surface channels,…

Quantum Physics · Physics 2020-12-30 K. L. Chiu , D. G. Qian , J. W. Qiu , W. Y. Liu , D. Tan , V. Mosallanejad , S. Liu , Z. T. Zhang , Y. Zhao , D. P. Yu

We report measurements on two superconducting flux qubits coupled to a readout Superconducting QUantum Interference Device (SQUID). Two on-chip flux bias lines allow independent flux control of any two of the three elements, as illustrated…

Superconductivity · Physics 2009-11-11 B. L. T. Plourde , T. L. Robertson , P. A. Reichardt , T. Hime , S. Linzen , C. -E. Wu , John Clarke

We present a cavity-electromechanical system comprising a superconducting quantum interference device which is embedded in a microwave resonator and coupled via a pick-up loop to a 6 $\mu$g magnetically-levitated superconducting sphere. The…

The recent demonstration that nanoparticles associated with various biological molecules and pharmacological agents can be administered systemically to humans, without toxicity from the particles, has opened a new era in the targeting of…

Medical Physics · Physics 2007-05-23 G. G. Kenning , R. Rodriguez , V. S. Zotev , A. Moslemi , S. Wilson , L. Hawel , C. Byus , J. S. Kovach

Engineering high-order nonlinearities while suppressing lower-order terms is crucial for quantum error correction and state control in bosonic systems, yet it remains an outstanding challenge. Here, we introduce a general framework of…

Quantum Physics · Physics 2025-05-15 Ziyue Hua , Yifang Xu , Weiting Wang , Yuwei Ma , Jie Zhou , Weizhou Cai , Hao Ai , Yu-xi Liu , Ming Li , Chang-Ling Zou , Luyan Sun

Focused ion beam (FIB) technology has been used to fabricate miniature Nb DC SQUIDs which incorporate resistively-shunted microbridge junctions and a central loop with a hole diameter ranging from 1058 nm to 50 nm. The smallest device, with…

Superconductivity · Physics 2010-03-30 Giuseppe C. Tettamanzi , Christopher I. Pakes , Simon K. H. Lam , Steven Prawer

Nanoscale superconductor-semiconductor hybrid devices are assembled from InAs semiconductor nanowires individually contacted by aluminum-based superconductor electrodes. Below 1 K, the high transparency of the contacts gives rise to…

The superconducting proximity effect has been the focus of significant research efforts over many years and has recently attracted renewed interest as the basis of topologically non-trivial states in materials with a large spin orbit…

Mesoscale and Nanoscale Physics · Physics 2019-07-10 C. Jünger , A. Baumgartner , R. Delagrange , D. Chevallier , S. Lehmann , M. Nilsson , K. A. Dick , C. Thelander , C. Schönenberger

We report the transport measurements on the InAs self-assembled quantum dots (SAQDs) which have a unique structural zero-dimensionality, coupled to a superconducting quantum interference device (SQUID). Owing to the SQUID geometry, we…

Mesoscale and Nanoscale Physics · Physics 2011-02-10 S. Kim , R. Ishiguro , M. Kamio , Y. Doda , E. Watanebe , K. Shibata , K. Hirakawa , H. Takayanagi
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