Faculty Publications

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Author: search.filters.author.Rudra, B.Subject: search.filters.subject.Quantum entanglement

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    An efficient approach for quantum entanglement purification
    (World Scientific, 2022) Mummadi, M.; Rudra, B.
    Entanglement plays a major role in quantum information process and is a principal resource for various quantum applications like quantum teleportation, quantum key distribution, quantum communication, etc. Strong entangled pairs are required for efficient information process but system impurities during the transportation diminishes the entanglement by reducing the fidelity of the entangled pair. In order to reduce this, purification techniques can be used. In this paper, we propose an efficient entanglement purification method to distill the entanglement using entanglement swapping. The proposed method increases the fidelity of the entanglement and can be a proficient for various applications of quantum computing. © 2022 World Scientific Publishing Company.
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    Optimisation of quantum circuits using cost effective quantum gates
    (Inderscience Publishers, 2025) Mummadi, S.; Rudra, B.
    The importance of reversible operations has increased with the emergence of new technologies. Reversible operations are crucial for developing energy-efficient and cost-efficient circuits. The efficiency of a quantum circuit is measured in terms of quantum cost and quantum depth. In this paper, we propose an optimisation algorithm for reversible gates like the Peres gate, Toffoli gate, and the entanglement purification method. Peres and Toffoli gates play an important role in quantum circuit implementation, and entanglement purification plays a key role in various applications like quantum teleportation, secure communication, quantum key distribution, etc. The proposed algorithm optimises the quantum cost and quantum depth to 20% compared to the existing approaches. © 2025 Inderscience Enterprises Ltd.