activity
20242026
collaborators

6 papers

cond-mat.quant-gas2026

Bell inequality violation with momentum-entangled massive particles

Y. S. Athreya, S. Kannan, X. T. Yan +3

Bell's theorem revealed the fundamental incompatibility between the predictions of quantum mechanics and local realism. Bell inequality violations have since demonstrated quantum n…

cond-mat.quant-gas2026

A framework for separating dephasing from decoherence in matter-wave Bell interferometers

S. Kannan, Y. S. Athreya, X. T. Yan +2

Matter-wave Bell interferometers provide a sensitive probe of mass-dependent decoherence in entangled quantum systems. The degree of entanglement is obtained from the Bell-correlat…

physics.optics2026

Pulse Breathing Dynamics in a Mode-Locked Laser measured via SHG autocorrelation

S. Kannan, S. Padmanaban, X. T. Yan +4

Pulse-to-pulse fluctuations in mode-locked lasers fundamentally limit applications from optical frequency combs to supercontinuum generation. While timing jitter has been extensive…

cond-mat.quant-gas2025

Bell correlations between momentum-entangled pairs of atoms

Y. S. Athreya, S. Kannan, X. T. Yan +4

Nonlocal entanglement between pair-correlated particles is a highly counter-intuitive aspect of quantum mechanics, where measurement on one particle can instantly affect the other,…

quant-ph2024

Proposal for a Bell Test with Entangled Atoms of Different Mass

X. T. Yan, S. Kannan, Y. S. Athreya +2

We propose a Bell test experiment using momentum-entangled atom pairs of different masses, specifically metastable helium isotopes 3He* and 4He*, though the method extends to other…

cond-mat.quant-gas2024

Measurement of the -wave scattering length between metastable helium isotopes

S. Kannan, Y. S. Athreya, A. H. Abbas +3

We report the first experimental determination of the interspecies -wave scattering length\,() between the state of He and the $2\,^3…