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Excitation spectrum as a resource for efficient two-qubit entangling gates
Dmitry Solenov, Sophia E. Economou, Thomas L. Reinecke
Physical systems representing qubits typically have one or more accessible quantum states in addition to the two states that encode the qubit. We demonstrate that active involvemen…
Theory of dynamic nuclear polarization and feedback in quantum dots
Sophia E. Economou, Edwin Barnes
An electron confined in a quantum dot interacts with its local nuclear spin environment through the hyperfine contact interaction. This interaction combined with external control a…
Strong Hyperfine-Induced Modulation of an Optically-Driven Hole Spin in an InAs Quantum Dot
Samuel G. Carter, Sophia E. Economou, Alex Greilich +4
Compared to electrons, holes in InAs quantum dots have a significantly weaker hyperfine interaction that leads to less dephasing from nuclear spins. Thus many recent studies have s…
Two-qubit quantum gates for defect qubits in diamond and similar systems
Dmitry Solenov, Sophia E. Economou, Thomas L. Reinecke
We propose a fast, scalable all-optical design for arbitrary two-qubit operations for defect qubits in diamond (NV centers) and in silicon carbide, which are promising candidates f…