Dynamical decoupling of local transverse random telegraph noise in a two-qubit gate

Controlling the dynamics of entanglement and preventing its disappearance are central requisites for any implementation of quantum information processing. Solid state qubits are frequently affected by random telegraph noise due to bistable impurities of different nature coupled to the device. In this paper, we investigate the possibility to achieve an efficient universal two-qubit gate in the presence of random telegraph noise by periodic dynamical decoupling. We find an analytic form of the gate error as a function of the number of applied pulses valid when the gate time is much shorter then the telegraphic process correlation time. The analysis is further supplemented by exact numerical results demonstrating the feasibility of a highly-efficient universal two-qubit gate.

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Extraction of Trap Energy Distribution in Proton-Irradiated Focal Plane Arrays using a High Precision Random Telegraph Noise Detection Algorithm

IEEE Transactions on Instrumentation and Measurement ◽

10.1109/tim.2021.3066543 ◽

2021 ◽

pp. 1-1

Author(s):

Victor D. Pepel ◽

Preston T. Webster ◽

Julie V. Logan ◽

Christian P. Morath

Keyword(s):

Energy Distribution ◽

High Precision ◽

Focal Plane ◽

Detection Algorithm ◽

Focal Plane Arrays ◽

Noise Detection ◽

Random Telegraph Noise ◽

Trap Energy ◽

Telegraph Noise

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Investigation on the amplitude distribution of random telegraph noise (RTN) in nanoscale MOS devices

2016 IEEE International Nanoelectronics Conference (INEC) ◽

10.1109/inec.2016.7589332 ◽

2016 ◽

Cited By ~ 5

Author(s):

Zexuan Zhang ◽

Shaofeng Guo ◽

Xiaobo Jiang ◽

Runsheng Wang ◽

Ru Huang ◽

...

Keyword(s):

Amplitude Distribution ◽

Random Telegraph Noise ◽

Mos Devices ◽

Telegraph Noise

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Design of True Random Number Circuit with Controllable Frequency

Electronics ◽

10.3390/electronics10131517 ◽

2021 ◽

Vol 10 (13) ◽

pp. 1517

Author(s):

Xinsheng Wang ◽

Xiyue Wang

Keyword(s):

Random Number ◽

Noise Source ◽

State Of The Art ◽

Building Blocks ◽

Encryption Algorithm ◽

Random Numbers ◽

Random Number Generators ◽

Random Telegraph Noise ◽

Telegraph Noise ◽

Novel Method

True random number generators (TRNGs) have been a research hotspot due to secure encryption algorithm requirements. Therefore, such circuits are necessary building blocks in state-of-the-art security controllers. In this paper, a TRNG based on random telegraph noise (RTN) with a controllable rate is proposed. A novel method of noise array circuits is presented, which consists of digital decoder circuits and RTN noise circuits. The frequency of generating random numbers is controlled by the speed of selecting different gating signals. The results of simulation show that the array circuits consist of 64 noise source circuits that can generate random numbers by a frequency from 1 kHz to 16 kHz.

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