Zobrazeno 1 - 10
of 1 069
pro vyhledávání: '"Dykman M"'
The paper describes the means to reveal and characterize slow periodic modulation of qubit frequency. Such modulation can come from different sources and can impact qubit stability. We show that the modulation leads to very sharp peaks in the power s
Externí odkaz:
http://arxiv.org/abs/2408.08196
We present a method to stabilize the frequency of self-sustained vibrations in micro- and nanomechanical resonators. The method refers to a two-mode system with the vibrations at significantly different frequencies. The signal from one mode is used t
Externí odkaz:
http://arxiv.org/abs/2405.10977
A parametrically modulated oscillator has two opposite-phase vibrational states at half the modulation frequency. An extra force at the vibration frequency breaks the symmetry of the states. The effect can be extremely strong due to the interplay bet
Externí odkaz:
http://arxiv.org/abs/2405.02706
Carbon nanotubes are devices of choice for investigating the interplay between electronic transport and nanomechanical motion. In this work, we report the co-existence of thermal vibrations and large-amplitude self-sustained oscillations in a carbon
Externí odkaz:
http://arxiv.org/abs/2312.14034
Publikováno v:
Phys. Rev. Reserach 6, 023162 (2024)
Asymmetric Ising model, in which coupled spins affect each other differently, plays an important role in diverse fields, from physics to biology to artificial intelligence. We show that coupled parametric oscillators provide a well-controlled and ful
Externí odkaz:
http://arxiv.org/abs/2309.04281
Slow fluctuations of a qubit frequency are one of the major problems faced by quantum computers. To understand their origin it is necessary to go beyond the analysis of their spectra. We show that characteristic features of the fluctuations can be re
Externí odkaz:
http://arxiv.org/abs/2304.05241
Liquid He-4 is free from magnetic defects, making it an ideal substrate for electrons with long-lived spin states. Such states can serve as qubit states. Here we consider the spin states of electrons electrostatically localized in quantum dots on a h
Externí odkaz:
http://arxiv.org/abs/2212.10683
Autor:
Ochs, J. S., Boness, D. K. J., Rastelli, G., Seitner, M., Belzig, W., Dykman, M. I., Weig, E. M.
Phononic frequency combs have been attracting an increasing attention both as a qualitatively new type of nonlinear phenomena in vibrational systems and from the point of view of applications. It is commonly believed that at least two modes must be i
Externí odkaz:
http://arxiv.org/abs/2207.04030
Fluctuations of the qubit frequencies are one of the major problems to overcome on the way to scalable quantum computers. Of particular importance are fluctuations with the correlation time that exceeds the decoherence time due to decay and dephasing
Externí odkaz:
http://arxiv.org/abs/2207.01740
Publikováno v:
Rev. Mod. Phys. 94, 045005 (2022)
Nanomechanics has brought mesoscopic physics into the world of vibrations. Because nanomechanical systems are small, fluctuations are significant, the vibrations become nonlinear already for comparatively small amplitudes, and new mechanisms of dissi
Externí odkaz:
http://arxiv.org/abs/2202.01819