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13 results for “Quantum gate”
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Research ArticleOpen accessEvery word in the titleQuantum Hadamard Gate Implementation Using Planar Lightwave Circuit and Photonic Crystal StructuresShamsolah Salemian, Shahram MohammadnejadAn all optical method has been proposed for quantum Hadamard gate implementation. This quantum gate was realized by using Y-junction beam splitter. Normal modes in waveguides have been used as quantum bit. This all optical gate can be used in quantum computation and communication. The proposed Hadamard gate has potential of being more compact and easily realized compared to other … …American Journal of Applied Sciences, Vol. 5, Issue 9 · 30 Sep 2008 · 7,921 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Novel Fault-Tolerant Majority Gate Architecture for Robust Operation in QCA-Based Nano CircuitsAmi Patel, Vrushank Shah, Dipti KhurgeQuantum Dot Cellular Automata (QCA) is one of the promising alternatives to the traditional CMOS technologies for next-generation nanocomputing, which can be integrated at a higher density and has a higher possibility of low power consumption. Fabrication defects, environmental noise, and fault tolerance, especially in larger circuits, are challenging for practical implementation of QCA circuits. A new Fault-Tolerant Majority Gate … …Journal of Computer Science, Vol. 22, Issue 7 · 7 Jul 2026 · 1,194 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDesign and Analysis of Adders using Nanotechnology Based Quantum dot Cellular AutomataS. Karthigai Lakshmi, G. AthishaProblem statement: The area and complexity are the major issues in circuit design. Here, we propose different types of adder designs based on Quantum dot Cellular Automata (QCA) that reduces number of QCA cells and area compare to previous designs. The quantum dot cellular automata is a novel computing paradigm in nanotechnology that can implement digital circuits with faster speed, … …Journal of Computer Science, Vol. 7, Issue 7 · 30 Jun 2011 · 7,311 accessesView PDFCite
Research ArticleOpen accessIn the keywordsNOVEL REVERSIBLE VARIABLE PRECISION MULTIPLIER USING REVERSIBLE LOGIC GATESM. Saravanan, K. Suresh ManicMultipliers play a vital role in digital systems especially in digital processors. There are many algorithms and designs were proposed in the earlier works, but still there is a need and a greater interest in designing a less complex, low power consuming, fastest multipliers. Reversible logic design became the promising technologies gaining greater interest due to less dissipation of heat … …Journal of Computer Science, Vol. 10, Issue 7 · 12 Feb 2014 · 6,706 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Novel Fault Tolerant Reversible Gate For Nanotechnology Based SystemsMajid Haghparast, Keivan NaviThis paper proposes a novel reversible logic gate, NFT. It is a parity preserving reversible logic gate, that is, the parity of the outputs matches that of the inputs. We demonstrate that the NFT gate can implement all Boolean functions. It renders a wide class of circuit faults readily detectable at the circuit's outputs. The proposed parity preserving reversible gate, … …American Journal of Applied Sciences, Vol. 5, Issue 5 · 31 May 2008 · 7,904 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Novel Reversible BCD Adder For Nanotechnology Based SystemsMajid Haghparast, Keivan NaviThis paper proposes two reversible logic gates, HNFG and HNG. The first gate HNFG can be used as two Feynman Gates. It is suitable for a single copy of two bits with no garbage outputs. It can be used as &#34Copying Circuit&#34 to increase fan-out because fan-out is not allowed in reversible circuits. The second gate HNG can implement all … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 10,135 accessesView PDFCite
Review ArticleOpen accessIn the abstractA Comprehensive Review of Post-Quantum Cryptography AlgorithmsSamandeep Kaur, Jaswinder SinghThe development of quantum computing has been rapid, and an existential threat to computational hardness assumptions that underlie today's public-key cryptography has been encountered. This manuscript is a complete and thoroughly organized review of Post-Quantum Cryptography (PQC), discussing the mathematical concepts, complexity, and mechanisms of the algorithms that underpin quantum-safe security infrastructures. Rather than the principles of quantum mechanics, the … …Journal of Computer Science, Vol. 22, Issue 9 · 25 Sep 2026 · 723 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalysis Quantum Implementation of Double AES Cryptography for Secure QR Code GenerationJimmy Wijaya, RojaliData security faces unprecedented challenges due to the rapid advancement of quantum computing technologies, which threaten to compromise foundational classical cryptographic algorithms. This study investigates the quantum implementation of a Double Advanced Encryption Standard (Double AES) scheme for generating secure, tamper-resistant Quick Response (QR) codes. The research encompasses architectural design, quantum circuit construction, and empirical performance evaluation across encryption/decryption execution … …Journal of Computer Science, Vol. 22, Issue 9 · 20 Sep 2026 · 571 accessesView PDFCite
Research ArticleOpen accessIn the abstractQuantum-Enhanced IoT-Cloud Security: Integrating SHAP and Variational Quantum ClassifiersVeena Antony, Nainan ThangarasuIn the current Internet era, there are now trillions of gadgets online, and the Internet of Things is becoming a necessary part of daily life. IoT devices are connected, but this also makes them vulnerable to cyberattacks. Cyberattacks targeting Internet of Things (IoT) systems have increased dramatically in both volume and sophistication in the last year. Determining the importance and … …Journal of Computer Science, Vol. 21, Issue 1 · 20 Dec 2024 · 4,951 accessesView PDFCite
Research ArticleOpen accessIn the abstractALL OPTICAL IMPLEMENTATION OF HIGH SPEED AND LOW POWER REVERSIBLE FULL ADDER USING SEMICONDUCTOR OPTICAL AMPLIFIER BASED MACH-ZEHNDER INTERFEROMETERR. M. Bommi, S. Selvakumar RajaIn the recent years reversible logic design has promising applications in low power computing, optical computing, quantum computing. VLSI design mainly concentrates on low power logic circuit design. In the present scenario researchers have made implementations of reversible logic gates in optical domain for its low energy consumption and high speed. This study is all about designing a reversible Full … …Journal of Computer Science, Vol. 10, Issue 7 · 12 Feb 2014 · 6,669 accessesView PDFCite