Initiative on Quantum Technology (IQT@IISc)

The Initiative:

The Indian Institute of Science (IISc) has been declared an Institute of Eminence (IOE) by the Government of India in July 2018. One of the cutting-edge research areas that IISc seeks to explore seriously under IOE is the field of “Quantum Technologies.” IISc has several faculty members, in physics, engineering, and computer science, who have started working together on such technologies.

Background:

The field of quantum technologies is poised for significant breakthroughs in the coming years. The essential features that contribute to these technologies are superposition, entanglement, squeezing and tunneling of quantum states. Practical applications are expected to appear first in sensing and metrology, then in communications and simulations, then as feedback to foundations of quantum theory, and ultimately in quantum computing. The field is multi-disciplinary, combining physics+computer science on the theoretical side, and physics+engineering on the experimental side.

Compared to the world-wide development, the existing expertise and facilities available in India are limited on the theoretical side and severely lacking on the experimental side. To build up the field of quantum technologies from this stage, even in carefully selected areas, is a significant challenge. IISc plans to bring the Indian pursuit in this field on par with the rest of the world, with a dedicated and focused effort.

Roadmap:

IQT plans to set up international collaborations in this field, and take help of an international advisory committee to guide the research effort.

IQT plans to train and hire skilled researchers in this cutting-edge research field, at the student, the post-doctoral and the faculty level.

IQT will hold periodic workshops and meetings in this field, to keep abreast of the latest developments, and also to motivate young researchers.

Structure of the Research Centre:

A worthwhile effort in this high-risk-high-reward field has to blend both concrete deliverables and open-ended research investigations. Also, simultaneous explorations of competing technologies must complement each other, by contrasting their advantages and limitations. To make the best use of the available expertise, IISc has put together a structure involving people from different departments.

This centre aims to deliver quantum enhanced technologies. Its experimental program will focus on superconducting qubit devices, sources and detectors for quantum communications, and quantum sensors. It will benefit from the dedicated national nano-fabrication facility at IISc. The theoretical effort will certainly support the experimental program, while being broad-based enough to explore other open areas in this rapidly advancing field. The developments in quantum technologies will also push classical technologies in new directions.

Objectives (over 5 years):

  • At least 8 qubit quantum superconducting transmon processors, with basic characterisation and demonstration of toy applications.
  • Demonstration of quantum information transfer between circuit QED and quantum acoustic modes, in mesoscale and nanoscale devices.
  • Design and development of control electronics for solid state quantum systems.
  • Characterisation and fabrication of single qubit components of high precision electromagnetic and mechanical sensors.
  • Development of heralded photon sources, providing on-demand entangled photons.
  • Demonstration of 2D materials based single-photon sensors with nanosecond resolution.
  • Establishment of a campus-wide quantum communications network.
  • Novel algorithms for quantum supremacy demonstration and quantum simulations.
  • Protocols for post-quantum cryptography and quantum-safe communications.

Members and Expertise: