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Quantum Communication Over 300 meters demonstrated by ISRO

  • Posted By
    10Pointer
  • Categories
    Science & Technology
  • Published
    25th Mar, 2021

Context

For the first time in the country, the Indian Space Research Organisation (ISRO) has demonstrated free-space quantum communication over a distance of 300 meters.

What is Quantum Communication?

  • Quantum communication is based on the advantage of the laws of quantum physics.
  • This involves the use of photons of light for transmitting data along with optical cables.
  • They represent multiple combinations of 1 and 0 together.
  • The particles are known as quantum bits or qubits.

About the Quantum Communication achieved through ISRO

  • The free-space Quantum Key Distribution (QKD) technology was demonstrated at Space Applications Centre.
  • Several key technologies have been developed indigenously to accomplish this major feat
    • indigenously developed NAVIC receiver used for the time synchronization between the transmitter and receiver
    • gimbal mechanism systems for optical alignment

Significance of Quantum Communication

  • Security of data: The Quantum Key Distribution (QKD) technology uses Quantum Communication technology which ensures unconditional data security through the principles of quantum mechanics.
    • Conventional cryptosystems depend on the complexity of mathematical algorithms, whereas quantum communication is based on the laws of Physics.
  • It is taken as a breakthrough towards ISRO’s goal of showing satellite-based quantum communication.

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