Numerical simulations predict that tensile or unstrained germanium heterostructures yield spin splittings over 100 times larger than compressive cases, enabling GHz Andreev spin qubits with 100 ns all-electric gates.
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In a superconducting analogue of a black hole horizon, decoherence induced by Andreev reflection at weak coupling reemerges as coherence at stronger coupling via resonant tunneling through Andreev bound states.
citing papers explorer
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Strain engineering of Andreev spin qubits in Germanium
Numerical simulations predict that tensile or unstrained germanium heterostructures yield spin splittings over 100 times larger than compressive cases, enabling GHz Andreev spin qubits with 100 ns all-electric gates.
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Decoherence and the Reemergence of Coherence From a Superconducting "Horizon''
In a superconducting analogue of a black hole horizon, decoherence induced by Andreev reflection at weak coupling reemerges as coherence at stronger coupling via resonant tunneling through Andreev bound states.