Clement Ampadu

Dr. Clement Ampadu


Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 July 2011 in Physical Review A
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CAClement Ampadu
Clement Ampadu
We study a one-parameter family of discrete-time quantum walk models on Z and Z2 associated with the Hadamard walk. Weak convergence in the long-time limit of all moments of the walker's pseudovelocity on Z and Z2 is proved. Symmetrization on Z and Z2 is theoretically investigated, leading to the resolution of the Konno-Namiki-Soshi conjecture in the special case of symmetrization of the unbiased Hadamard walk on Z. A necessary condition for the existence of a phenomenon known as localization is given. DOI: http://dx.doi.org/10.1103/PhysRevA.84.012324 ©2011 American Physical Society

24 March 2023 in Mathematics
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HAHuda M Alshanbari
Huda M Alshanbari
ZAZubair Ahmad
Zubair Ahmad
Hazem Al-MoflehHazem Al-Mofleh
Hazem Al-Mofleh
CAClement Ampadu
Clement Ampadu
SKSaima Khan Khosa
Saima Khan Khosa
In this paper, we propose a useful method without adding any extra parameters to obtain new probability distributions. The proposed family is a combination of the two existing families of distributions and is called a weighted sine-G family. A two-parameter special member of the weighted sine-G family, using the Weibull distribution as a baseline model, is considered and investigated in detail. Some distributional properties of the weighted sine-G family are derived. Different estimation methods are considered to estimate the parameters of the special model of the weighted sine-G family. Furthermore, simulation studies based on these different methods are also provided. Finally, the applicability and usefulness of the weighted sine-G family are demonstrated by analyzing two data sets taken from the engineering sector.

8 August 2012 in Communications in Theoretical Physics
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CAClement Ampadu
Clement Ampadu
In this paper the return probability of the one-dimensional discrete-time quantum walk is studied. We derive probabilistic formulas for the return probability related to the quantum walk governed by the Fibonacci coin.

1 December 2019 in Pakistan Journal of Statistics and Operation Research
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ZAZubair Ahmad
Zubair Ahmad
CAClement Ampadu
Clement Ampadu
G.G. HamedaniG.G. Hamedani
G.G. Hamedani
Farrukh JamalFarrukh Jamal
Farrukh Jamal
ANArslan Nasir
Arslan Nasir
In this article, we introduce a new class of distributions called the New Exponentiated T-X family of distributions. A special sub-model of the proposed family, called a new exponentiated exponential-Weibull is considered in detail. Some structural properties associated with this new class of distributions are obtained. Certain characterizations of the proposed family are presented. Maximum likelihood estimators of the model parameters are obtained and Monte Carlo simulation study is conducted to evaluate the performances of these estimators. Finally, the importance of the new family is illustrated empirically via a real-life application.


1 August 2012 in Physical Review A
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CAClement Ampadu
Clement Ampadu
In this paper we present an introduction to the theory of anyons and discuss how basis sets and matrix representation of the interaction terms can be obtained, using non-Abelian Fibonacci anyons. We show that the change of basis matrix for certain fusion trees called pentagons is given by a certain unitary matrix which is introduced in Sec. I, and denoted F$\tau${}$\tau${},$\tau${},$\tau${} throughout the remainder of the paper. We perform a quantum walk with the Fibonacci anyons governed by the unitary matrix F$\tau${}$\tau${},$\tau${},$\tau${} and obtain the limiting distribution of the walk.