Abstract
Quantum computing requires stable qubits that can hold information for long periods of time. Researchers assemble a hybrid double quantum dot that is both scalable and possesses a long-lived quantum memory.
Highlights
Quantum physics, when applied to computing, is projected to usher in a new computational paradigm with great potential applications in cryptography and simulation [1]
Such a double dot could take advantage of fast spin manipulations using gate voltage to form a hybrid singlet-triplet qubit coupled to the long-lived quantum memory offered by its nuclear spin
We have investigated a hybrid double-dot system formed by a single donor and a corner dot in a single silicon nanowire transistor
Summary
Quantum physics, when applied to computing, is projected to usher in a new computational paradigm with great potential applications in cryptography and simulation [1]. It is attractive to investigate the possibility of hybrid architectures, which bring together the advantages of these two systems by coupling a quantum dot to a donor atom [23,24] Such a double dot could take advantage of fast spin manipulations using gate voltage to form a hybrid singlet-triplet qubit coupled to the long-lived quantum memory offered by its nuclear spin. This hybrid architecture could be used to create spin buses with. These results demonstrate the potential of a donor-dot system as a new singlet-triplet qubit
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