Results 81 to 90 of about 1,437 (189)

Equivalent qubit dynamics under classical and quantum noise

open access: yes, 2007
We study the dynamics of quantum systems under classical and quantum noise, focusing on decoherence in qubit systems. Classical noise is described by a random process leading to a stochastic temporal evolution of a closed quantum system, whereas quantum ...
H. J. Charmichael   +7 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

Time-evolution of tripartite quantum discord and entanglement under local and non-local random telegraph noise

open access: yes, 2013
Few studies explored the dynamics of non-classical correlations besides entanglement in open multipartite quantum systems. Here, we address the time-evolution of quantum discord and entanglement in a model of three non-interacting qubits subject to a ...
Bordone, Paolo, Buscemi, Fabrizio
core   +1 more source

Impact of Hot Carrier Aging on Random Telegraph Noise and Within a Device Fluctuation [PDF]

open access: yes
For nanometer MOSFETs, charging and discharging a single trap induces random telegraph noise (RTN). When there are more than a few traps, RTN signal becomes complex and appears as within a device fluctuation (WDF). RTN/WDF causes jitters in switch timing
Duan, M   +8 more
core  

Interplay between nonclassicality and $\mathcal{PT}$ symmetry in an effective two level system with open system effects

open access: yes, 2019
A three level atom in $\Lambda$ configuration is reduced to an effective two level system, under appropriate conditions, and its $\mathcal{PT}$ symmetric properties are investigated.
Banerjee, Subhashish   +2 more
core   +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

Conductance in Co/Al2O3/Si/Al2O3 permalloy with asymmetrically doped barrier

open access: yes, 2010
Permalloy magnetic tunnel junctions. Complementary low frequency noise measurements are used to understand the conductance results. The obtained data indicate the breakdown of the Coulomb blockade for thickness of the asymmetric silicon layer exceeding 1.
A. I. Larkin   +12 more
core   +1 more source

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

Measuring the distribution of current fluctuations through a Josephson junction with very short current pulses

open access: yes, 2008
We propose to probe the distribution of current fluctuations by means of the escape probability histogram of a Josephson junction (JJ), obtained using very short bias current pulses in the adiabatic regime, where the low-frequency component of the ...
Claudon J.   +5 more
core   +1 more source

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