Charge qubit in van der Waals heterostructures

Abstract

The use of spatial quantum superpositions of electron states in a gated vdW heterostructure as a charge qubit is presented. We theoretically demonstrate the concept for the ZrSe${}_2$/SnSe${}_2$ vdW heterostructure using rigorous ab initio calculations. In the proposed scheme, the quantum state is prepared by applying a vertical electric field, is manipulated by short field pulses, and is measured via electric currents. The qubit is robust, operational at high temperature, and compatible with the current 2D technology. The results open up new avenues for the field of physical implementation of qubits.

arXiv commentMain: 6 pages, 5 figures Supporting Information: 5 pages, 3 figures, 2 tables

References in corpus (15)

• Van der Waals heterostructures
• 2D materials and van der Waals heterostructures
• Van der Waals density functionals applied to solids
• Coherent manipulation of electronic states in a double quantum dot
• Charge-qubit operation of an isolated double quantum dot
• Quantum coherent control of a hybrid superconducting circuit made with graphene-based van der Waals heterostructures
• Silicon quantum processor with robust long-distance qubit couplings
• A Dressed Spin Qubit in Silicon
• Valley qubit in gated MoS${}_2$ monolayer quantum dot
• All-electrical manipulation of silicon spin qubits with tunable spin-valley mixing
• Quantum computation with ultracold atoms in a driven optical lattice
• First principles study of charge diffusion between proximate solid state qubits and its implications on sensor applications
• A general procedure for accurate defect excitation energies from DFT-1/2 band structures: The case of NV${}^{-}$ center in diamond
• Nonlinear Graphene Quantum Capacitors for Electro-optics
• CUBIT: Capacitive qUantum BIT

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• Comparing concepts of quantum and classical neural network models for image classification task
• Dynamics of van der Waals Charge Qubit in 2D Bilayers: Ab initio Quantum Transport and Qubit Measurement
• A Method to Detect Quantum Coherent Transport in Memristive Devices