Results 81 to 90 of about 1,457 (174)

Dynamical suppression of telegraph and 1/f noise due to quantum bistable fluctuator

open access: yes, 2004
We study dynamical decoupling of a qubit from non gaussian quantum noise due to discrete sources, as bistable fluctuators and 1/f noise. We obtain analytic and numerical results for generic operating point.
A. D’Arrigo   +11 more
core   +1 more source

Optimal control of a qubit coupled to a non-Markovian environment

open access: yes, 2008
A central challenge for implementing quantum computing in the solid state is decoupling the qubits from the intrinsic noise of the material. We investigate the implementation of quantum gates for a paradigmatic, non-Markovian model: A single qubit ...
Rebentrost, P.   +3 more
core   +1 more source

Telegraph noise effects on two charge-qubits in double quantum dots

open access: yes, 2013
We analyze theoretically the decoherence of two interacting electrons in a double self-assembled quantum dot due to a random telegraph noise. For this purpose we have examined the pure dephasing rate by evaluating the decoherence factor.
Ayachi, A.   +3 more
core   +1 more source

Quantum Size Effect transition in percolating nanocomposite films

open access: yes, 2000
We report on unique electronic properties in Fe-SiO2 nanocomposite thin films in the vicinity of the percolation threshold. The electronic transport is dominated by quantum corrections to the metallic conduction of the Infinite Cluster (IC).
A. B. Pakhomov   +56 more
core   +1 more source

Overview on the phenomenon of two-qubit entanglement revivals in classical environments

open access: yes, 2016
The occurrence of revivals of quantum entanglement between separated open quantum systems has been shown not only for dissipative non-Markovian quantum environments but also for classical environments in absence of back-action.
A Chiuri   +89 more
core   +1 more source

Ohmic and step noise from a single trapping center hybridized with a Fermi sea

open access: yes, 2005
We show that single electron tunneling devices such as the Cooper-pair box or double quantum dot can be sensitive to the zero-point fluctuation of a single trapping center hybridized with a Fermi sea.
Frank K. Wilhelm   +6 more
core   +1 more source

A low-power and high-speed True Random Number Generator using generated RTN [PDF]

open access: yes
A novel True Random Number Generator (TRNG), using random telegraph noise (RTN) as the entropy source, is proposed to address speed, design area, power and cost simultaneously.
Brown, J   +9 more
core  

Bias polarity dependent low-frequency noise in ultra-thin AlOx-based magnetic tunnel junctions

open access: yesScientific Reports
We exploit bias polarity dependent low-frequency noise (LFN) spectroscopy to investigate charge transport dynamics in ultra-thin AlOx-based magnetic tunnel junctions (MTJs) with bipolar resistive switching (RS).
Chun-Yen Chen   +6 more
doaj   +1 more source

Impact of Observation Time Window on RTN-Induced Jitter in CMOS Ring Oscillators

open access: yesIEEE Access
At nanometer scale device dimensions, factors that lead to integrated circuit performance variations from one instant in time to another become increasingly significant.
Gilson Wirth   +2 more
doaj   +1 more source

Detectors for the James Webb Space Telescope Near-Infrared Spectrograph I: Readout Mode, Noise Model, and Calibration Considerations [PDF]

open access: yes
We describe how the James Webb Space Telescope (JWST) Near-Infrared Spectrograph's (NIRSpec's) detectors will be read out, and present a model of how noise scales with the number of multiple non-destructive reads sampling-up-the-ramp.
Alexander, David   +24 more
core   +1 more source

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