LAMP-SEMINAR

CONTINUOUS-VARIABLE QUANTUM SYSTEMS: CORRELATED INTERFEROMETRY, SPATIAL CORRELATIONS, AND OPTICAL-MICROWAVE QUANTUM TRANSDUCTION

Speaker: SIVA PRADYUMNA TEKURU (National Institute of Standards and Technology, Boulder, Colorado,80305, USA Department of Physics, University of Colorado, Boulder, Colorado 80305, USA)

Date and time
Venue
Online

Abstract

Continuous-variable quantum systems provide a versatile platform for exploiting non-classical correlations in precision measurement and information encoding. In this talk, I will present my work on the characterization and utilization of non-classical states, including squeezed states of light and two-mode squeezed states. I will discuss how such states enable quantum-enhanced correlated interferometry for detecting faint signals and demonstrate how spatial correlations in entangled light can be harnessed for information encoding accessible only through joint measurements. I will also describe recent efforts towards establishing optical networking of superconducting quantum nodes via opto-electro-mechanical transduction. In this work, I investigated the generation and characterization of bright non-degenerate twin-beam states and analyzed the transducer performance by quantifying conversion efficiency, added noise, and information capacity within a Gaussian-channel framework

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Short Biography
Dr. Siva Pradyumna Tekuru is a Postdoctoral Research Associate at the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder, where his research focuses on continuous-variable quantum systems and optical-to-microwave quantum transduction. Previously, he served as a Higher Research Scientist at the UK’s National Physical Laboratory, specializing in the metrology for testing and evaluation of CV-QKD and CV-QRNG hardware. He received his PhD in Metrology from Politecnico di Torino and completed a postdoctoral fellowship at the University of Oklahoma, where he worked on continuous-variable quantum states such as squeezed light and bright twin beams for enhanced precision metrology and imaging