collaborators

6 papers

cond-mat.mtrl-sci2026

Coupling between CaWO phonons and Er dopants

Mikhael T. Sayat, Federico Pisani, Hin Lok Chang +8

We investigate the lattice dynamics of CaWO, a promising host crystal for erbium-based quantum memories, using inelastic neutron scattering together with density-functional per…

cond-mat.str-el2026

Magnetic structure of EuZnSb single-crystal thin-film

Yu Wei Soh, Hsiang Lee, Eugen Weschke +4

Magnetic topological materials are a class of compounds which can host massless electrons controlled by the magnetic order. One such compound is EuZnSb, which has recently…

cond-mat.mtrl-sci2026

Nuclear quadrupole interaction and zero first-order Zeeman transitions of Er in CaWO

Lewin Marsh, Yikai Yang, Cesare Mattiroli +5

We report microwave spectroscopy of Er doped in CaWO which reveals the hyperfine splitting of the erbium electronic ground state (, =15/2)…

quant-ph2025

Improving Free-Space Continuous Variable Quantum Key Distribution with Adaptive Optics

Mikhael T. Sayat, Marcus Birch, Michael Copeland +6

A significant performance inhibitor of free-space continuous variable quantum key distribution (CVQKD) is turbulence, which gives rise to wavefront phase and amplitude aberrations.…

quant-ph2025

Polarisation and Temperature Dependence of Er:CaWO -- Towards a Solid-State Rare-Earth Ion-Doped Quantum Memory

Mikhael T. Sayat, Trevor R. Lee, Suchit Negi +6

In the endeavour of developing quantum memories, Er:CaWO has emerged as a promising rare-earth ion-doped (REID) crystal platform due to its long optical coherence times…

quant-ph2025

Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network

Mikhael T. Sayat, Sebastian P. Kish, Ping Koy Lam +2

Continuous variable quantum key distribution (CVQKD) is a developing method to secure information exchange in future quantum networks. With the recent developments in quantum techn…