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Roadmap to fault tolerant quantum computation using topological qubit arrays
David Aasen, Morteza Aghaee, Zulfi Alam +179
We describe a concrete device roadmap towards a fault-tolerant quantum computing architecture based on noise-resilient, topologically protected Majorana-based qubits. Our roadmap e…
Accessing the dark exciton spin in deterministic quantum-dot microlenses
Tobias Heindel, Alexander Thoma, Ido Schwartz +11
The dark exciton state in semiconductor quantum dots constitutes a long-lived solid-state qubit which has the potential to play an important role in implementations of solid-state…
On-demand source of maximally entangled photon-pairs using the biexciton-exciton radiative cascade
R. Winik, D. Cogan, Y. Don +7
We perform full time resolved tomographic measurements of the polarization state of pairs of photons emitted during the radiative cascade of the confined biexciton in a semiconduct…
Deterministic Generation of a Cluster State of Entangled Photons
Ido Schwartz, Dan Cogan, Emma R. Schmidgall +5
We use semiconductor quantum dots, "artificial atoms," to implement a scheme for deterministic generation of long strings of entangled photons in a cluster state, an important reso…
Controlling the Dark Exciton Spin Eigenstates by External Magnetic Field
L. Gantz, E. R. Schmidgall, I. Schwartz +4
We study the dark exciton's behavior as a coherent physical two-level spin system (qubit) using an external magnetic field in the Faraday configuration. Our studies are based on po…
Deterministic Coherent Writing of a Long-Lived Semiconductor Spin Qubit Using One Ultrafast Optical Pulse
I. Schwartz, D. Cogan, E. R. Schmidgall +4
We use one single, few-picosecond-long, variably polarized laser pulse to deterministically write any selected spin state of a quantum dot confined dark exciton whose life and cohe…