collaborators

5 papers

cond-mat.mes-hall2026

Two-Qubit Module Based on Phonon-Coupled Ge Hole-Spin Qubits: Design, Fabrication, and Readout at 1-4 K

D. -M. Mei, S. A. Panamaldeniya, K. -M. Dong +2

We present a device-level design study for a two-qubit module based on phonon-coupled germanium (Ge) hole-spin qubits targeted for operation at --. Building on pri…

physics.app-ph2026

Depletion-limited Effective Hall mobility in Micrometer-Scale High-Purity Germanium Crystals

Narayan Budhathoki, Dongming Mei, Sanjay Bhattarai +5

Electrostatic effects can strongly constrain charge transport in thinned high-purity germanium (HPGe), with direct implications for radiation detectors and Ge-based electronic and…

physics.ins-det2025

Evaluating the Effective Segregation Coefficient in High-Purity Germanium (HPGe) Crystals for Ge Detector Development in Rare-Event Searches

S. Chhetri, D. -M. Mei, S. Bhattarai +5

The performance and scalability of rare-event physics experiments depend on large-volume, detector-grade high-purity germanium (HPGe) crystals with precise control of impurity segr…

hep-ph2025

Probing low-mass dark matter from sub-MeV to sub-GeV with germanium-based quantum phononic spectroscopy

D. -M. Mei, N. Budhathoki, S. A. Panamaldeniya +5

We present a germanium phonon-to-charge transducer that integrates a slow-phonon phononic-crystal (PnC) region with radio-frequency quantum point-contact (RF-QPC) readout at 4 K, a…

astro-ph.IM2025

Ge-based Quantum Sensors for Low-Energy Physics

D. -M. Mei, N. Budhathoki, S. A. Panamaldeniya +5

We present \textbf{GeQuLEP} (Germanium-based Quantum Sensors for Low-Energy Physics), a conceptual design for an advanced quantum sensing platform integrating high-purity germanium…