GeM Hosts Orientation Session for IDAS probationers on transforming public procurement (See 'Corp Brief') NHAI receives SEBI's in-irinciple approval for registration of Raajmarg Infra Investment Trust as InvIT (See 'Corp Brief') Centre okays Export Promotion Mission to Boost MSMEs & first-time Exporters (See 'Corp Brief') Govt lists steps taken to include AI-based diagnostic tools in healthcare (See 'Corp Brief') Govt reviews steps for upskilling & increase womens' participation in MSME sector (See 'Corp Brief') PM Vishwakarma Scheme - holistic support for artisans of 18 traditional trades; 23.09 Lakh beneficiaries trained (See 'Corp Brief') Govt notifies DPDP Act & Rules thereof; simplified framework for startups & data fiduciaries (See 'Corp Brief') SARFAESI - as per Sec 15 of the Act, if borrower's management is taken over by secured creditor, the management may be restored upon full repayment of debt: HC (See 'Legal Desk') Afforestation, ecological restoration - coal mining cos steps to ensure ecological balance (See 'Corp Brief') Competition Act - allegations primarily concerning contraventions of the Companies Act or Ministry of Youth Affairs and Sports directives, do not relate to anti-competitive conduct or violation of the Act: CCI (See 'Legal Desk') RBI issues guidelines for banks to provide customer services in regional languages (See 'Corp Brief') IBC - If bank has released approved payments from TRA account operated by them, then bank was monitoring these transactions during entire CIRP: IBBI (See 'Legal Desk') Govt releases Credit Assessment Model for MSMEs to enhance digitally driven loan appraisal (See 'Corp Brief') IBBI - Cannot be expected to maintain information with respect to other laws outside its purview: IBBI (See 'Legal Desk') Govt's aid measures for MSMEs - TReDS, Rs 9000 Crore infusion (See 'Corp Brief') Indian media & entertainment sector to maintain growth despite AI disruption: Secy (See 'Corp Brief') PBPT - Transactions are rightly deemed benami u/s 2(9)(D) of PBPTA, where person who provided consideration for properties was not traceable: SAFEMA Tribunal (See 'Legal Desk') Sustainable coal mining - Govt simplifies approval for geological exploration & reports (See 'Corp Brief') Benami - Benami transaction is considered not only in case of transfer of property by beneficial owner for his ultimate benefit in future, but even if such properties is held by benamidar: SAFEMA (See 'Legal Desk') IITF-2025 - FCI Pavilion showcasing modernised foodgrain management bags bronze medal (See 'Corp Brief') Copyright Act - Police have jurisdiction to register FIR u/s 33EEC of the Drugs and Cosmetics Act in conjunction with cognizable offence under Copyright Act; registration of copyright not mandatory for criminal proceedings upon infringement: HC (See 'Legal Desk') VO Chidambarnar port receives first Clinker vessel following MoU with Ambuja Cement Ltd (See 'Corp Brief') PMLA - Sweep of Sec 5(1) is not limited to accused named in criminal activity relating to scheduled offence, but shall apply equally to person who is involved in any activity connected with proceeds of crime: SAFEMA (See 'Legal Desk')

Print

DRDO, IIT Delhi demonstrates various Quantum Communication Technologies

Published: Nov 27, 2024

By TIOLCorplaws News Service

NEW DELHI, NOV 27, 2024: THE DRDO Industry Academia-Centre of Excellence (DIA-CoE), IIT Delhi demonstrated quantum communications technologies in New Delhi today on November 26, 2024. It has been developed by their collaborative initiative of the entanglement based quantum key distribution approaches for robust and secure communication, demonstrating entanglement distribution and quantum key distribution (QKD) over a 50 km fiber link in laboratory. A separate field test has demonstrated entanglement distribution and QKD over 8 km of optical fiber in IIT Delhi campus.

In another initiative of quantum research, Free-space Entanglement distribution was demonstrated using the BBM-92 protocol, a key QKD method, between two tables separated by 20 meters in the lab and 80m in the open space. This experiment demonstrated short-range quantum communication in a free-space setup.

In an innovative experiment, Hybrid entanglement has been demonstrated in a free-space environment, achieving a Quantum Bit Error Rate (QBER) of around 6% in the laboratory over a distance of 10m in the lab. In addition, QKD systems supporting multiple independent channels driven by a single source are also being explored with promising results. These open the door for more flexible, multi-protocol quantum communication systems.

In achieving the above breakthrough, an all-fiber heralded photon source with second-order correlation function (g² ~ 0.01) at rates reaching hundreds of kHz is developed. This innovation is vital for single-photon generation, a critical requirement for secure quantum communication. An all-fiber entangled photon source has also been developed with high visibility. The Bell test parameter for this source is more than 2.6, exhibiting strong quantum entanglement, which is essential for protocols like BBM-92.

For free space quantum communication experiments, Free-space heralded single photon source has been demonstrated with a heralding rate of over 4 million counts/sec. This development enables robust free-space quantum communication.

Following India's First Quantum Key Distribution (QKD) demonstration between the cities of Prayagraj and Vindhyachal, separated by 100 km, by DRDO labs and IIT (D) in February 2022, many new initiatives have been taken by DRDO and IIT (D).

In addition, indigenisation of various components like quantum sources and detectors are initiated. These include single photon sources on LNOI, SNSPD and periodically poled non-linear crystals. These projects are launched at IIT Delhi in collaboration with DRDO labs like DYSL-QT and SSPL and are funded by Directorate of Futuristic Technology Management under its deep tech initiatives aimed at fostering cutting-edge innovations in defence technology.

Through its projects at the DIA-CoE, IITD, DRDO have created a strong national foot-print in QKD with breakthroughs in fibre and free space areas. Quantum communication holds significant potential for enhancing security in strategic sectors, such as defence and finance, by providing robust and tamper-evident communication channels.

The DRDO Industry Academia-Centre of Excellence (DIA-CoE) is a collaborative initiative between DRDO and IIT Delhi, established at IIT Delhi. The CoE is developing various quantum communication technologies like development of fibre and free-space (polarization/hybrid photon) based Quantum Key Distributions Technologies, Quantum Sources, Quantum Detectors and Non-linear Crystals.

TIOL CORP SEARCH

TIOL GROUP WEBSITES

taxindiaonline
taxindiainternational
tioltube
TKF
TIOLawards
A TIOL Website. Copyright © 2025 TIOLcorplaws.com All rights reserved.