Programmable Quantum Processor with Quantum Dot Qubits

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2019,（7）
• 页码范围: 10-13
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/36/7/070302

摘要

The realization of controllable couplings between any two qubits and among any multiple qubits is the critical problem in building a programmable quantum processor (PQP).We present a design to implement these types of couplings in a double-dot molecule system,where all the qubits are connected directly with capacitors and the couplings between them are controlled via the voltage on the double-dot molecules.A general interaction Hamiltonian of n qubits is presented,from which we can derive the Hamiltonians for performing operations needed in building a PQP,such as gate operations between arbitrary two qubits and parallel coupling operations for multigroup qubits.The scheme is realizable with current technology.