IISER Thiruvananthapuram joins with international partners for research in quantum communication

NEW DELHI: Scientists at the Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) in collaboration with a team consisting of scientists from SN Bose National Centre for Basic Sciences, Kolkata, Anhui University, China, and Universidad de Sevilla, Spain, have worked in the field of quantum theory and quantum communication and have made a breakthrough discovery.

The team’s research has been published in journal, Physical Review Letters, in a paper co-authored by Debashis Saha from IISER TVM; Shashank Gupta and AS Majumdar from SN Bose National Centre for Basic Sciences, Kolkata; Zhen-Peng Xu from Anhui University, China; Adan Cabello from Universidad de Sevilla, Spain.

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The research paper authors believe that quantum contextuality can enable quantum communication-based applications such as quantum teleportation, distributed quantum computation, and secure quantum secret key generation or quantum cryptography, all of which are currently impossible using classical communication.

IISER TVM researchers claim that the research can help in developing quantum computers and communication devices in future. Explaining their breakthrough, IISER TVM department of Physics assistant professor Debashis Saha, said: “We have shown that a large class of communication tasks that cannot be achieved using classical communication can be accomplished using quantum contextuality, rather than quantum entanglement."