GENERAL |
|
|
|
|
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
|
|
Cite this article: |
Yao Chen, Fo-Liang Lin, Xi Liang et al 2019 Chin. Phys. Lett. 36 070302 |
|
|
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.
|
|
Received: 18 February 2019
Published: 20 June 2019
|
|
PACS: |
03.67.Lx
|
(Quantum computation architectures and implementations)
|
|
42.50.Dv
|
(Quantum state engineering and measurements)
|
|
42.50.Pq
|
(Cavity quantum electrodynamics; micromasers)
|
|
85.35.Be
|
(Quantum well devices (quantum dots, quantum wires, etc.))
|
|
|
|
|
[1] | Loss D and DiVincenzo D P 1998 Phys. Rev. A 57 120 | [2] | Hayashi T, Fujisawa T, Cheong H D, Jeong Y H and Hirayama Y 2003 Phys. Rev. Lett. 91 226804 | [3] | Veldhorst M, Yang C H, Hwang J C, Huang W, Dehollain J P, Muhonen J T, Simmons S, Laucht A, Hudson F E and Itoh K M 2015 Nature 526 410 | [4] | Petta J R, Johnson A C, Taylor J M, Laird E A, Yacoby A, Lukin M D, Marcus C M, Hanson M P and Gossard A C 2005 Science 309 2180 | [5] | Taylor J M, Srinivasa V and Medford J 2013 Phys. Rev. Lett. 111 050502 | [6] | Laird E A, Taylor J M, DiVincenzo D P, Marcus C M, Hanson M P and Gossard A C 2010 Phys. Rev. B 82 075403 | [7] | Kim D, Shi Z, Simmons C B, Ward D R, Prance J R, Koh T S, Gamble J K, Savage D E, Lagally M G and Friesen M 2014 Nature 511 70 | [8] | Shi Z, Simmons C B, Prance J R, Gamble J K, Koh T S, Shim Y P, Xuedong Hu, Savage D E, Lagally M G, Eriksson M A, Friesen M and Coppersmith S N 2012 Phys. Rev. Lett. 108 140503 | [9] | Shi Z, Simmons C B, Ward D R, Prance J R, Wu X, Koh T S, Gamble J K, Savage D E, Lagally M G and Friesen M 2014 Nat. Commun. 5 3020 | [10] | Chen K J, Xu J, Qian X Y et al 2013 Chin. Phys. Lett. 30 077303 | [11] | Zhou C, Tu T, L Wang et al 2012 Chin. Phys. Lett. 29 117303 | [12] | Taylor J M, Engel H A, Dur W, Yacoby A, Marcus C M, Zoller P and Lukin M D 2005 Nat. Phys. 1 177 | [13] | Veldhorst M, Eenink H G J, Yang C H and Dzurak A S 2017 Nat. Commun. 8 1766 | [14] | Taylor J M and Lukin M D 2006 arXiv:0605144 | [15] | Kawakami E, Scarlino P, Ward D R et al 2014 Nat. Nanotechnol. 9 666 | [16] | Veldhorst M, Hwang. J C C, Yang C H et al 2014 Nat. Nanotechnol. 9 981 | [17] | Muhonen J T, Dehollain J P, Laucht A et al 2014 Nat. Nanotechnol. 9 986 | [18] | Yoneda J, Takeda K, Otsuka T et al 2018 Nat. Nanotechnol. 13 102 | [19] | Zhang X, Li H O, Cao G, Xiao M, Guo G C and Guo G P 2019 Natl. Sci. Rev. 6 32 | [20] | Childress L, Sorensen A S and Lukin M D 2004 Phys. Rev. A 69 042302 | [21] | Guo G P, Zhang H, Hu Y, Tu T and Guo G C 2008 Phys. Rev. A 78 020302 R | [22] | Taylor J M, Petta J R, Johnson A C, Yacoby A, Marcus C M and Lukin M D 2007 Phys. Rev. B 76 035315 | [23] | Petersson K D, Smith C G, Anderson D, Atkinson P, Jones G A C and Ritchie D A 2010 Nano Lett. 10 2789 | [24] | Frey T, Leek P J, Beck M, Blais A, Ihn T, Ensslin K and Wallraff A 2012 Phys. Rev. Lett. 108 046807 | [25] | Vion D, Aassime A, Cottet A, Joyez P, Pothier H, Urbina C, Esteve D and Devoret M H 2002 Science 296 886 | [26] | Stepanenko D and Burkard G 2007 Phys. Rev. B 75 085324 | [27] | Ward D R, Dohun Kim, Savage D E, Lagally M G, Foote R H, Friesen M, Coppersmith S N and Eriksson M A 2016 npj Quantum Inf. 2 16032 | [28] | Li H O, Cao G, Yu G D, Xiao M, Guo G C, Jiang H W and Guo G P 2015 Nat. Commun. 6 7681 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|