scholarly journals Block-based quantum-logic synthesis

2011 ◽  
Vol 11 (3&4) ◽  
pp. 262-277
Author(s):  
Mehdi Saeedi ◽  
Mona Arabzadeh ◽  
Morteza Saheb Zamani ◽  
Mehdi Sedighi
Keyword(s):  
Quantum Logic ◽  
Nearest Neighbor ◽  
Synthesis Method ◽  
Logic Synthesis ◽  
Quantum Circuit ◽  
Basic Block ◽  
Synthesis Methods ◽  
Quantum Logic Synthesis ◽  
Block Based ◽  
Arbitrary Quantum

In this paper, the problem of constructing an efficient quantum circuit for the implementation of an arbitrary quantum computation is addressed. To this end, a basic block based on the cosine-sine decomposition method is suggested which contains $l$ qubits. In addition, a previously proposed quantum-logic synthesis method based on quantum Shannon decomposition is recursively applied to reach unitary gates over $l$ qubits. Then, the basic block is used and some optimizations are applied to remove redundant gates. It is shown that the exact value of $l$ affects the number of one-qubit and CNOT gates in the proposed method. In comparison to the previous synthesis methods, the value of $l$ is examined consequently to improve either the number of CNOT gates or the total number of gates. The proposed approach is further analyzed by considering the nearest neighbor limitation. According to our evaluation, the number of CNOT gates is increased by at most a factor of $\frac{5}{3}$ if the nearest neighbor interaction is applied.

scholarly journals Synthesis of quantum circuits in Linear Nearest neighbor Model using Positive Davio Lattices

2011 ◽  
Vol 24 (1) ◽  
pp. 71-87 ◽  
Author(s):  
Marek Perkowski ◽  
Martin Lukac ◽  
Dipal Shah ◽  
Michitaka Kameyama
Keyword(s):  
Nearest Neighbor ◽  
Dimensional Space ◽  
Synthesis Method ◽  
Logic Synthesis ◽  
Quantum Circuits ◽  
Quantum Gates ◽  
Synthesis Methods ◽  
Cost Models ◽  
Quantum Cost ◽  
One Dimensional

We present a logic synthesis method based on lattices that realize quantum arrays in One-Dimensional Ion Trap technology. This means that all gates are built from 2x2 quantum primitives that are located only on neighbor qubits in a one-dimensional space (called also vector of qubits or Linear Nearest Neighbor (LNN) architecture). The Logic circuits designed by the proposed method are realized only with 3*3 Toffoli, Feynman and NOT quantum gates and the usage of the commonly used multi-input Toffoli gates is avoided. This realization method of quantum circuits is different from most of reversible circuits synthesis methods from the literature that use only high level quantum cost based on the number of quantum gates. Our synthesis approach applies to both standard and LNN quantum cost models. It leads to entirely new CAD algorithms for circuit synthesis and substantially decreases the quantum cost for LNN quantum circuits. The drawback of synthesizing circuits in the presented LNN architecture is the addition of ancilla qubits.

scholarly journals Quantum-Logic Synthesis of Hermitian Gates

2016 ◽  
Vol 12 (4) ◽  
pp. 1-15 ◽  
Author(s):  
Mona Arabzadeh ◽  
Mahboobeh Houshmand ◽  
Mehdi Sedighi ◽  
Morteza Saheb Zamani
Keyword(s):  
Quantum Logic ◽  
Logic Synthesis ◽  
Quantum Logic Synthesis

FTQLS: Fault-Tolerant Quantum Logic Synthesis

2014 ◽  
Vol 22 (6) ◽  
pp. 1350-1363 ◽  
Author(s):  
Chia-Chun Lin ◽  
Amlan Chakrabarti ◽  
Niraj K. Jha
Keyword(s):  
Quantum Logic ◽  
Fault Tolerant ◽  
Logic Synthesis ◽  
Quantum Logic Synthesis

scholarly journals Optimal Space-Depth Trade-Off of CNOT Circuits in Quantum Logic Synthesis

2020 ◽  
pp. 213-229
Author(s):  
Jiaqing Jiang ◽  
Xiaoming Sun ◽  
Shang-Hua Teng ◽  
Bujiao Wu ◽  
Kewen Wu ◽  
...  
Keyword(s):  
Quantum Logic ◽  
Logic Synthesis ◽  
Trade Off ◽  
Quantum Logic Synthesis ◽  
Optimal Space

scholarly journals Interrelations of Synthesis Method, Polyethylene Glycol Coating, Physico-Chemical Characteristics, and Antimicrobial Activity of Silver Nanoparticles

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2475
Author(s):  
Amirah Shafilla Mohamad Kasim ◽  
Arbakariya Bin Ariff ◽  
Rosfarizan Mohamad ◽  
Fadzlie Wong Faizal Wong
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Polyethylene Glycol ◽  
Pathogenic Bacteria ◽  
Synthesis Method ◽  
Chemical Characteristics ◽  
Synthesis Methods ◽  
Uniform Size ◽  
Transmission Electron Microscopy Analysis ◽  
Physico Chemical

Silver nanoparticles (AgNPs) have been found to have extensive biomedical and biological applications. They can be synthesised using chemical and biological methods, and coated by polymer to enhance their stability. Hence, the changes in the physico-chemical characteristics of AgNPs must be scrutinised due to their importance for biological activity. The UV-Visible absorption spectra of polyethylene glycol (PEG) -coated AgNPs displayed a distinctive narrow peak compared to uncoated AgNPs. In addition, High-Resolution Transmission Electron Microscopy analysis revealed that the shapes of all AgNPs, were predominantly spherical, triangular, and rod-shaped. Fourier-Transform Infrared Spectroscopy analysis further confirmed the role of PEG molecules in the reduction and stabilisation of the AgNPs. Moreover, dynamic light scattering analysis also revealed that the polydispersity index values of PEG-coated AgNPs were lower than the uncoated AgNPs, implying a more uniform size distribution. Furthermore, the uncoated and PEG-coated biologically synthesised AgNPs demonstrated antagonisms activities towards tested pathogenic bacteria, whereas no antagonism activity was detected for the chemically synthesised AgNPs. Overall, generalisation on the interrelations of synthesis methods, PEG coating, characteristics, and antimicrobial activity of AgNPs were established in this study.

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