Patent
Quantum bit array
| العنوان: | Quantum bit array |
|---|---|
| Patent Number: | 12029,140 |
| تاريخ النشر: | July 02, 2024 |
| Appl. No: | 18/365936 |
| Application Filed: | August 04, 2023 |
| مستخلص: | A quantum bit array is disclosed. In an embodiment, the quantum bit array includes a control gate coupled to a qubit and at least one pass gate coupled between the qubit and an adjacent qubit to control operation of the qubit of the quantum bit array, a bit line, and a first transistor channel that connects the bit line to the control gate. The array further comprises at least one word line coupled to the first transistor channel. The at least one word line selectively controls charge flow through the first transistor channel. The array further comprises a capacitor coupled to selectively store charge in the first transistor channel. |
| Inventors: | Hsu, Fu-Chang (San Jose, CA, US); Hsu, Kevin (San Jose, CA, US) |
| Claim: | 1. A quantum bit array comprising: a substrate layer; an insulating layer on top of the substrate layer; barrier gates on top of the insulating layer forming an array of grid regions, wherein the barrier gates comprise a first set of barrier gates in a first direction and a second set of barrier gates in a second direction that overlap the first set of barrier gates, and wherein the barrier gates are separated by insulating portions; control gates formed on the insulating layer, wherein a selected control gate is formed within each grid region; and a qubit located under each grid region. |
| Claim: | 2. The quantum bit array of claim 1 , wherein the first set of barrier gates form X-lines and the second set of barrier gates for Y-lines, and wherein by applying a first selected voltage to the X-lines or Y-lines, a first electric potential of the substrate layer under the barrier gates creates a barrier to prevent adjacent qubits to ‘entangle’ or ‘shuttle’. |
| Claim: | 3. The quantum bit array of claim 2 , wherein by applying a second selected voltage or RF magnetic field to the X-lines and Y-lines, a second electric potential or magnetic field is created to allow the adjacent qubits to entangle or shuttle. |
| Claim: | 4. The quantum bit array of claim 3 , wherein by applying a third selected voltage or RF magnetic field to the control gates, an electric field under the control gates pulls electrons of the qubits toward the control gates or pushes electrons of the qubits away from the control gates to initialize or store a spin state of the qubits. |
| Claim: | 5. The quantum bit array of claim 1 , further comprising: contacts on top of the control gates; and conductor lines connected to the contacts to form data lines. |
| Claim: | 6. The quantum bit array of claim 5 , wherein the contacts are staggered from one control gate to the next so that the conductor lines form even and odd data lines. |
| Claim: | 7. The quantum bit array of claim 5 , wherein the contacts are centered on the control gates and the conductor lines are configured in a zig-zag pattern to form even and odd data lines. |
| Claim: | 8. The quantum bit array of claim 1 , wherein the control gates and the barrier gates comprise conductor material. |
| Patent References Cited: | 7830695 November 2010 Moon 20120280208 November 2012 Jain 20160087212 March 2016 Klein 20160125311 May 2016 Fuechsle 20180226451 August 2018 Dzurak et al. 20180301381 October 2018 Bi et al. 2009-16767 January 2009 2013-214729 October 2013 2017-508277 March 2017 2018-532255 November 2018 WO 2017/020095 February 2017 WO 2017/150980 September 2017 WO 2018/236404 December 2018 WO 2019/004990 January 2019 WO 2019/066843 April 2019 |
| Other References: | International Search Report, dated Jun. 8, 2021, for corresponding International Application No. PCT/US2021/023534 (2 pages). cited by applicant Written Opinion of the International Searching Authority, dated Jun. 8, 2021, for corresponding International Application No. PCT/US2021/023534 (6 pages). cited by applicant First Examination Report, dated Jan. 24, 2023, for corresponding India Application No. 202227059540 (7 pages). cited by applicant Japan Office Action, dated Dec. 18, 2023, for corresponding Japan Application No. 2023-501331, with English translation (16 pages). cited by applicant Extended European Search Report, dated Apr. 4, 2024, for corresponding European Application No. 1776277.2 (14 pages). cited by applicant Veldhorst et al., “Silicon CMOS architecture for a spin-based quantum computer”, Nature Communications, vol. 8, Article No. 1766 (2017), pp. 1-8, (8 pages). cited by applicant Li et al., “A Crossbar Network for Silicon Quantum Dot Qubits”, arxiv.org, Cornell University Library, submitted on Nov. 10, 2017, pp. 1-24 (also published in Science Advances, Jul. 6, 2018, vol. 4, Issue 7), (24 pages). cited by applicant |
| Primary Examiner: | Skibinski, Tomi |
| Attorney, Agent or Firm: | Intellectual Property Law Group LLP |
| رقم الانضمام: | edspgr.12029140 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |