Antisite Defect Qubits in Monolayer Transition Metal Dichalcogenides
AssigneesNortheastern University, Academia Sinica, Temple University of the Commonwealth System of Higher Education
InventorsJeng-Yuan Tsai, Jinbo Pan, Hsin Lin, Arun Bansil, Qimin Yan
Life of this patent
Estimating the term…
Abstract
Anion antisite defects in monolayer Transition Metal Dichalcogenide (TMD) systems are here identified as two-dimen-sional solid-state defect qubits. The proposed antisites in these TMDs host paramagnetic triplet ground states with flexible level splitting. A viable transition loop between the triplet and singlet defect states is demonstrated, including optical excitations/relaxations and nonradiative decay paths for the antisites as qubits. A complete set of qubit operational processes, including initialization, manipulation, and readout, is delineated.
Claims21
A solid-state spin quantum bit system for performing at least one of a quantum computing operation and a quantum information system operation, the system comprising:
- a solid-state two-dimensional material comprising a neutral anion antisite defect;
- the neutral anion antisite defect being configured to be optically excited from a paramagnetic triplet ground state to an excited triplet state, and being configured to undergo nonradiative intersystem crossing processes between different spin-multiplet states, and being configured to provide two distinguishable luminescence signatures for two spin sublevels for quantum bit readout.
A method of performing at least one of a quantum computing operation and a quantum information system operation in a solid-state spin quantum bit system, the method comprising:
- optically exciting a neutral anion antisite defect of a solid-state two-dimensional material from a paramagnetic triplet ground state to an excited triplet state, the neutral anion antisite defect being configured to undergo nonradiative intersystem crossing processes between different spin-multiplet states, and being configured to provide two distinguishable luminescence signatures for two spin sublevels for quantum bit readout.
Dependencies are inferred from the claim text.