Beyond Diamond: Finding and understanding nuclear-spin-quiet hosts for solid-state spin qubits

Invited talk delivered in Session 1: Quantum Materials and Devices at ISSMD-2026, hosted by IIT Ropar on 23–25 October 2026.

The talk covered two connected threads from our group:

  1. Interpretable ML screening for nuclear-spin-quiet qubit hosts (work by Md Mahshook A, published in Physical Review Materials): using composition-only models and Rashomon-set agreement across ~45,000 stable compounds to identify 122 candidate host materials, including layered chalcogenides, alkaline-earth tellurides, high-ε oxides, and ternaries.
  2. The ¹⁷O hyperfine bath of Ce³⁺ polarons in CeO₂ (work by Chithresh T M): showing how orbital orientation of the localised 4f¹ state selects a single strongly coupled first-shell ¹⁷O neighbour (2.02 MHz by DFT), yielding an exceptionally quiet spin bath with testable ESEEM/HYSCORE signatures.

See the full event report and photo gallery.

Type
Invited Talk
Host
IIT Ropar
Location
Rupnagar, India