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Programmable Quantum Processor with Quantum Dot Qubits |
| Yao Chen, Fo-Liang Lin, Xi Liang, Nian-Quan Jiang** |
College of Mathematics, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035
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| Cite this article: |
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Yao Chen, Fo-Liang Lin, Xi Liang et al 2019 Chin. Phys. Lett. 36 070302 |
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Abstract 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.
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Received: 18 February 2019
Published: 20 June 2019
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| PACS: |
03.67.Lx
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(Quantum computation architectures and implementations)
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42.50.Dv
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(Quantum state engineering and measurements)
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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85.35.Be
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(Quantum well devices (quantum dots, quantum wires, etc.))
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