Fabrication of optoelectrical sensor/detector platform using quantum confined systems

Atikur Rahman

• Why Needed

  Modern optoelectronic applications, from secure communications, biomedical imaging, non-destructive inspection, automation control, and so forth, depend heavily on high-performance photodetectors and sensors.

• Socio-economic Impact on the Country

  Ultra-sensitive sensor platform will be beneficial for numerous applications like point-of-care diagnostics, environmental monitoring, secure communications, automation control etc. Cost effecting production of these high-performance sensors/detectors will have enormous impact on the economic growth of the country.

• Innovation in the Technology

  Scalable and well controlled fabrication of quantum confined systems with single digit nm precession positioning.

• Application Sector

  Health, Defense/Security, Agriculture, Environmental monitoring.

Large Quantum Registers with Nuclear Spin-Systems

Mahesh T S

• Why Needed

  Implementing nontrivial quantum simulations will need large number (50+) of qubits with quantum memory surviving long-enough to implement quantum controls.

• Socio-economic Impact on the Country

  Quantum simulations can efficiently solve scientific models, optimization problems, and can come up with low-cost high-gain solutions.NMR quantum register is also ideal for educational purposes.

• Innovation in the Technology

  The proposed topology of spin-systems limits spectral crowding while allowing robust control over large number of qubits.

• Application Sector

  Health, Defence/Security, Infrastructure, Agriculture, Environment.

Crystal growth, structural and physical characterization of quantum materials

Surjeet Singh

• Why Needed

  Crystal fabrication technology is needed for high-quality electronics and energy harvesting devices for communication and data storage, and clean energy generation.

• Socio-economic Impact on the Country

  Crystal growth and design of new quantum materials will give country a head start in several emerging quantum technologies where new materials with specific properties are required and cannot be easily/economically procured from other countries.
  
  Crystals of several quantum materials (non-linear optical materials and 2D materials) are commercially available. There is a huge scope for home-grown market and export.

• Innovation in the Technology

  Advanced materials require innovative crystal growth technology, e.g. development of LASER based directed heating.

• Application Sector

  Defence/Security, Infrastructure, and Environment.

Development of 20 qubit ion trap quantum processor & Development of a Transportable Atomic Gravimeter

Umakant Rapol

• Why Needed

  The projects are engaged in advancing several cutting-edge technologies, including the development of a quantum gravimeter, optical atomic clock, and both ion trap and neutral atom-based quantum computers. These innovations all rely on the manipulation and cooling of atoms and ions.

• Innovation in the Technology

  In the development of a Quantum gravimeter, Bose-Einstein condensate is utilized to showcase a gravimeter with a sensitivity o(〖10〗^(-4) gal)/√Hz using Mach-Zehnder interferometer technique. Our objective involves the capture and cooling of strontium atoms with the aim of achieving a narrow linewidth, ultimately converting them into an optical lattice clock. We employ a trapping method to capture rubidium atoms, enabling us to arrange them into a two-dimensional array for the purpose of performing quantum computing or simulations.

• Application Sector

  All of these developments have huge applications.
  
  1.Quantum Gravimeter has application in geophysical exploration, detection of mineshafts and sinkhole, detection of illegal tunnels
  
  2.Optical Atomic clock has application is Global navigation satellite system, telecommunication and C5ISR system.
  
  3.Quantum computer has application starting from pharmaceutical, automobile sector, chemicals, and more importantly in problems related to optimization problems such as ordering problem in high valued transaction.

Quantum chaos border for arbitrary arrays of transmon-based quantum computers

M. S. Santhanam

• Why Needed

  Coupled transmonbased quantum computers have emerged as a leading technology for quantum hardware. The topology and connectivity matrix of the transmons determine if it can effectively function as a computing device. This project will determine the range of parameters and topology for proper functioning of the quantum devices.

• Innovation in the Technology

  Among the first theoretical studies that will be directly applicable for a leading quantum computing technology. Will provide guidelines for new quantum devices built in India.

• Application Sector

  Design principles for coupled arrays of transmon based quantum computers.

Quantum phases in 2D materials for disruptive technologies

Mukul Kabir

• Why Needed

  Energy-efficient spintronic devices and sensors, high-density data storage, fault-tolerant quantum computing.

• Socio-economic Impact on the Country

  High-density and high-speed information processing will become achievable with substantially reduced energy consumption, consequently reducing costs and enhancing productivity.

• Innovation in the Technology

  Magnetic ordering at room temperature, Exploiting emergent quantum states in designer 2D heterostructures, reversible manipulation.

• Application Sector

  Security, Infrastructure, Environment

Nano-Spintronic Devices based on 1D & 2D Quantum Magnets

Ashna Bajpai

• Why Needed

  The 1D systems: Functional Magnets encapsulated within CNT. Pristine CNT can be clean quantum system for experimental exploration of emergent excitations in 1D, such as Tomanaga-Luttigner liquid, Wigner crystal & spin-charge separation. Encapsulation of strongly correlated oxides within CNT can lead to hitherto unexplored 1D-magnets that couple exotic electronic states of CNT with that of multifunction TMO with exotic electronic and magnetic ground states. On –chip devices based on single can CNT filled with magnets can provide some practical solutions for spintronic applications. Unconventional 2D : The 2D quantum magnets derived from 4d & 5d based layered magnetic oxides with strong spin-orbit coupling, magnetic honeycomb with antiferromagnetic correlations, which are known test-beds for exploring Quantum Spin Liquid states (QSL), fractionalized excitations etc. Chrome based Oxides : Mesoscopic magnetic Tunnel Junctions without expensive thin film based technology,can be tuned by E,H, T and possibly stress (US Patent).

• Socio-economic Impact on the Country

  Cheaper and lighter functional material for nano-electronics.

• Innovation in the Technology

  Scalable synthesis of (i) Oxides@CNT using Camphor (ii) graphene –like sheets of layered 2D oxides. Novel Interface effects, leading to new functionality including piezomagnetism, large magnetoresistance.

• Application Sector

  Ultra thin magnetic sensors, antiferromagnetic spintronics, tuning by electric field magnetic field and strain.

Exciton-based quantum optoelectronic technologies: Quantum materials and devices, and enabling technologies

Ashish Arora

• About the Technology

  Control and utilization of the unique properties of excitons in newly emerging families of 2D quantum materials such as semiconducting transition metal dichalcogenides (TMDCs e.g. MoS2, WSe2 etc.) and layered 2D magnetic materials (2DMMs e.g. CrBr3, FePS3, MnPS3, CrSiTe3 etc.) for a new generation of exciton-based devices and technologies, and 2) Development of state-of-the-art high-performance technologies and setups to perform polarization-resolved magneto-optical spectroscopy, spectroscopic ellipsometry and magneto-ellipsometry of exciton resonances.

• Why Needed

  Modern electronics is energy intensive, new generations of energy-efficient devices are required.
  
  India strongly lacks in precision scientific instrumentation and manufacturing.

• Socio-economic Impact on the Country

  The proposed technologies will help the country to be self sufficient for its precision scientific equipment manufacturing, and a step towards quantum communication energy-efficient devices.

• Innovation in the Technology

  Ultrathin optical isolators based on 2D materials.
  
  Exciton-based energy-efficient and flexible devices.
  
  Fast acquisitionFaraday and Kerr spectroscope.
  
  Fast acquisition ellipsometer.
  
  High-performance polarimeters.

• Application Sector

  Health (polarimeters), environment (energy-efficient devices), defense/security (optical isolators), indigenous scientific technology development (Faraday and Kerr spectroscope, polarimeter, ellipsometer).