activity
20192026
collaborators

5 papers

quant-ph2026

Achieving Sub-Zeptonewton Force Sensitivity and Spin-Motion Entanglement in Levitated Diamond via Pulsed Backaction Evasion

Gayathrini Premawardhana, Jonathan Beaumariage, M. V. Gurudev Dutt +3

We propose a system to achieve sub-zeptonewton force sensing and robust spin-mechanical entanglement in a levitated diamond system. By coupling a nitrogen-vacancy (NV) center spin…

physics.ins-det2026

Nanofabricated torsion pendulums for tabletop gravity experiments

Jack Manley, Charles A. Condos, Zachary Fegley +5

Measurement of mutual gravitation on laboratory scales is an outstanding challenge and a prerequisite to probing theories of quantum gravity. A leading technology in tabletop gravi…

quant-ph2025

Entanglement witness for combined atom interferometer-mechanical oscillator setup

Gayathrini Premawardhana, Deven P. Bowman, Jacob M. Taylor

We investigate how to entangle an atom interferometer and a macroscopic mechanical oscillator in order to create non-classical states of the oscillator. We propose an entanglement…

physics.atom-ph2023

Feasibility of a trapped atom interferometer with accelerating optical traps

Gayathrini Premawardhana, Jonathan Kunjummen, Sarthak Subhankar +1

In order to increase the measured phase of an atom interferometer and improve its sensitivity, researchers attempt to increase the enclosed space-time area using two methods: creat…

physics.acc-ph2019

Energy and RF Cavity Phase Symmetry Enforcement in Multi-turn ERL Models

Rosalyn Koscica, Nilanjan Banerjee, Georg Heinz Hoffstaetter +2

In a multipass energy recovery linac (ERL), each cavity must regain all energy expended from beam acceleration during beam deceleration, and the beam should achieve specific energy…