SG11201803912YA - Techniques for quantum error correction using bosonic modes and related systems and methods - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) CORRECTED VERSION (19) World Intellectual Property International Bureau .9 . si ww..0.7,..d ei (43) International Publication Date issor 8 September 2017 (08.09.2017) WIP0 I PCT Organization 111111111111311111111111111111111111111111111111111111111111111111111111111111111111111 (10) WO International 2017/151200 A8 Publication Number (51) International Patent Classification: (74) Agent: MORRIS, James, H.; Wolf, Greenfield & Sacks, B82Y 10/00 (2011.01) HO1L 39/22 (2006.01) P.C., 600 Atlantic Avenue, Boston, MA 02210--2206 GO6N 99/00 (2010.01) (US). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/US2016/064609 kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (22) International Filing Date: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, 2 December 2016 (02.12.2016) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (25) Filing Language: English HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (26) Publication Language: English MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (30) Priority Data: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 62/263,473 4 December 2015 (04.12.2015) US SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, (71) Applicant: YALE UNIVERSITY [US/US]; Two Whitney ZW. Avenue, New Haven, CT 06511 (US). (84) Designated States (unless otherwise indicated, for every (72) Inventors: GIRVIN, Steven, M.; 30 Deepwood Drive, kind of regional protection available): ARIPO (BW, GH, Hamden, CT 06517 (US). JIANG, Liang; 185 White GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, Birch Drive, Guilford, CT 06437 (US). MICHAEL, Mari- TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, os, H.; 301 Humphrey Street, Room 201, New Haven, CT TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 06511 (US). SILVERI, Matti; 301 Humphrey Street, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, Room 201, New Haven, CT 06511 (US). BRIERLEY, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Richard, T.; 48 Bishop Street, New Haven, CT 06511 SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (US). ALBERT, Victor, V.; 463 Whalley Ave, Apt. Q, GW, KM, ML, MR, NE, SN, TD, TG). New Haven, CT 06511 SALMILEHTO, Juha; 340 (US). Published: Orange Street, Apt 3, New Haven, CT 06511 (US). — international 21(3)) with search report (Art [Continued on next page] (54) Title: TECHNIQUES FOR QUANTUM ERROR CORRECTION USING BOSONIC MODES AND RELATED SYSTEMS = AND METHODS - 200 --i4 240 Detector 215 zia Coupling 4 I. 220 Gain, loss 4— 3 *- QUM Resonator and/or noise GC .4t C C N I 1-1 C 230 Energy Source FIG. 2 1-1 (57) : Some aspects are directed to a method of operating a circuit quantum electrodynamics system that includes a physical ‘ . i qubit dispersively coupled to a quantum mechanical oscillator, the method comprising measuring a parity of a first state of the ..::::; quantum mechanical oscillator, subsequent to measuring the parity of the first state, measuring a parity of a second state of the ei quantum mechanical oscillator, the second state being different from the first state, applying a first drive waveform to the quantum oscillator, and applying a second drive waveform to the physical qubit concurrent with the application of the first drive 0 mechanical waveform, wherein the first drive waveform and the second drive waveform are selected based at least in part on a result of compar- ing the measured parity of the second state to the measured parity of the first state. WO 2017/151200 A8 11101111111111011131101111111111131H111111111111111111111111111111111111 (48) Date of publication of this corrected version: (15) Information about Correction: 19 October 2017 see Notice of 19 October 2017