Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
System And Method For Quantification Of All-optical Quantum Gates Via Quantum State Tomography
Technology Category/Market
Category- Quantum Technology
Industry Classification:
Quantum computing systems or methods; Optical systems or apparatus; Semiconductor and Related Device Manufacturing
Applications:
Precise quantification and implementation of all-optical quantum gates; robust quantum state tomography, improving the reliability of quantum information processing; efficient and accurate optical systems for quantum gate operation.
Market report:
The global quantum computing market was valued at USD 1.3 Billion in 2024 and projected to grow to USD 5.3 Billion by 2029 with a CAGR of 32.7%
Problem Statement
- Effective quantification of all-optical quantum gates via tomography enhances precision in quantum computing.
- Conventional optical quantum gate technologies lack robust systems for efficient and accurate state quantification.
- Further, conventional quantification technologies have poor reliability due to high error rates, inefficiencies, and limited scalability in analyzing and implementing quantum gates.
- There is a need for a scalable, accurate, and efficient method for quantum state tomography, improving reliability and practicality in quantum computing.
Technology
- The invention quantifies all-optical quantum gates using quantum state tomography, enabling accurate measurement of gate fidelity essential for advanced quantum computing applications.
- Utilizes Polarization State Dependent Polarizer (PSDP) to couple orbital angular momentum (OAM) and polarization, facilitating precise projective measurements and state reconstruction.
- Features an optical system generating 36 OAM and polarization states, with projective measurements on each, ensuring robust quantum state tomography and fidelity assessment.
- Demonstrates superior fidelity measurement accuracy for quantum gates like CNOT, leveraging efficient beam path management and state quantification methodologies.
- Critical for quantum computing, optical quantum systems, and research involving precise state quantification and optimization of quantum gate performance metrics.
Key Features/Value Proposition
- The invention employs quantum state tomography for precise fidelity assessment of optical quantum gates, surpassing traditional methods with higher accuracy in state reconstruction.
- Utilizes PSDP to couple orbital angular momentum (OAM) and polarization, a novel feature improving the scope of projective measurements in quantum systems.
- Generates and measures 36 OAM and polarization states, significantly expanding the parameter space for accurate gate performance analysis.
- Offers a systematic and reproducible methodology, making it adaptable for future advancements in scalable quantum computing technologies.
- Outperforms existing technologies by ensuring lower error rates and providing robust tools for gate fidelity comparison and optimization
Questions about this Technology?
Contact for Licensing
Research Lab
Prof. Sivarama Krishnan
Department of Physics
Intellectual Property
- IITM IDF Ref 2955
- IN 202441049687 Patent Application
Technology Readiness Level
TRL 4
Technology Validated in Lab