Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Segall, K."'
Reinforcement learning algorithms are used in a wide range of applications, from gaming and robotics to autonomous vehicles. In this paper we describe a set of reinforcement learning-based local weight update rules and their implementation in superco
Externí odkaz:
http://arxiv.org/abs/2404.18774
Autor:
Schneider, M. L., Segall, K.
Neuromorphic computing has the potential to further the success of software-based artificial neural networks (ANNs) by designing hardware from a different perspective. Current research in neuromorphic hardware targets dramatic improvements to ANN per
Externí odkaz:
http://arxiv.org/abs/2008.06409
We present experimental evidence for a new behavior which involves discrete breathers and vortices in a Josephson Ladder. Breathers can be visualized as the creation and subsequent annihilation of vortex/anti-vortex pairs. An externally applied magne
Externí odkaz:
http://arxiv.org/abs/1403.4520
We present switching current measurements in niobium-aluminum oxide-niobium underdamped Josephson rings. Underdamped Josephson rings display hysteretic current-voltage curves which can be characterized by their switching current, the value of applied
Externí odkaz:
http://arxiv.org/abs/0807.2978
We study the thermal depinning of single fluxons in rings made of Josephson junctions. Due to thermal fluctuations a fluxon can be excited from its energy minima and move through the array, causing a voltage across each junction. We find that for the
Externí odkaz:
http://arxiv.org/abs/0806.4828
Akademický článek
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We describe a new biasing scheme for single photon detectors based on superconducting tunnel junctions. It replaces a single detector junction with a circuit of three junctions and achieves biasing of a detector junction at subgap currents without th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410072
We present a full theoretical and experimental study of the dynamics and energy distribution of non-equilibrium quasiparticles in superconducting tunnel junctions (STJs). STJs are often used for single-photon spectrometers, where the numbers of quasi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402056
Autor:
Crankshaw, D. S., Segall, K., Nakada, D., Orlando, T. P., Levitov, L. S., Lloyd, S., Valenzuela, S. O., Markovic, N., Tinkham, M., Berggren, K. K.
Publikováno v:
Phys. Rev. B 69, 144518 (2004)
DC measurements are made in a superconducting, persistent current qubit structure with a time-ordered meter. The persistent-current qubit has a double-well potential, with the two minima corresponding to magnetization states of opposite sign. Macrosc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311458
Autor:
Segall, K., Crankshaw, D., Nakada, D., Orlando, T. P., Levitov, L. S., Lloyd, S., Markovic, N., Valenzuela, S. O., Tinkham, M., Berggren, K. K.
Publikováno v:
Phys. Rev. B 67, 220506 (2003)
Measurements of thermal activation are made in a superconducting, niobium Persistent-Current (PC) qubit structure, which has two stable classical states of equal and opposite circulating current. The magnetization signal is read out by ramping the bi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302553