EPSRC logo

Details of Grant 

EPSRC Reference: EP/V048872/1
Title: Phase-insensitive amplifier for quantum measurements
Principal Investigator: Martynov, Dr D
Other Investigators:
Miao, Dr H
Researcher Co-Investigators:
Project Partners:
Department: School of Physics and Astronomy
Organisation: University of Birmingham
Scheme: Standard Research - NR1
Starts: 01 May 2021 Ends: 30 April 2023 Value (£): 202,544
EPSRC Research Topic Classifications:
Quantum Optics & Information
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
Precision measurement has been a primary driving force for advancing modern science. In particular, optical interferometers lead to the direct detection of gravitational waves from black holes and neutron stars, and can also be applied for axion dark matter detection. But how can we further improve optical measurements? The fundamental limit to their precision comes from the quantum nature of light. The canonical approach to overcoming the quantum limit is using the non-classical squeezed state of light. After decades of developments, it becomes full-fledged, but also reaches the hard limit from the optical loss that destroys the quantum decoherence. In this project, we will explore a new paradigm using quantum amplification that complements the squeezing technique and is robust against optical loss. The novelty involves an exploration of a phase-insensitive amplification process that leads to an asymmetrical amplification of the signal and the noise in optical interferometers. We will perform the first experimental study of an optomechanical amplifier and theoretically investigate the optimal amplification scheme. Our findings can lead to a new class of quantum techniques and will have a broad impact on high-precision detectors.
Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Summary
Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:  
Further Information:  
Organisation Website: http://www.bham.ac.uk