P. G. Pritchard

collaborators

3 papers

quant-ph2026

Transition-state lattice modes and the breakdown of adiabatic tunneling for hydrogen and deuterium in bcc Nb

P. Graham Pritchard, James M. Rondinelli

Interstitial hydrogen and deuterium in body-centered-cubic metals constitute archetypal quantum tunneling systems. Their relevance has been renewed by the connection between hydrog…

quant-ph2026

Lattice-Renormalized Tunneling Models for Superconducting Qubit Materials

P. G. Pritchard, James M. Rondinelli

We present a lattice-renormalized formalism for configurational tunneling two-level systems (TLS) that overcomes limitations of minimum-energy-path and light-particle models. Deriv…

cond-mat.mtrl-sci2024

Suppressed paramagnetism in amorphous Ta $_{2}$ O $_{5 - x}$ oxides and its link to superconducting qubit performance

P. Graham Pritchard, James M. Rondinelli

Reduced transmon qubit $T_{1}$ coherence times have been linked to the amorphous oxide layers formed by thin film capacitors during processing. Because Ta or Ta capped Nb capacitors…

Transition-state lattice modes and the breakdown of adiabatic tunneling for hydrogen and deuterium in bcc Nb

Lattice-Renormalized Tunneling Models for Superconducting Qubit Materials

Suppressed paramagnetism in amorphous Ta2​O5−x​ oxides and its link to superconducting qubit performance

Suppressed paramagnetism in amorphous Ta $_{2}$ O $_{5 - x}$ oxides and its link to superconducting qubit performance