Is there anyone working on physical realization of tantalum in transmon qubit quantum computers?

01 January 1970 0 5K Report

There is much research going on modification of transmon qubit for better coherence time and one of the experimental work "New material platform for superconducting transmon

qubits with coherence times exceeding 0.3 milliseconds" is presenting tantalum as a superconductor in transmon qubit by replacing niobium. Is there any company or tech institute working on its physical realization as a quantum computer? What are its alternatives?

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