BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Europe/Rome BEGIN:DAYLIGHT DTSTART:20260329T030000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST END:DAYLIGHT BEGIN:STANDARD DTSTART:20261025T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20261005T101433Z UID:5BD9F97E-5E69-4603-9C04-F551A93DCC09 DTSTART;TZID=Europe/Rome:20261002T150000 DTEND;TZID=Europe/Rome:20261002T160000 DESCRIPTION:This talk will cover practical challenges for the development o f integrated system designs for next generation quantum computing which in cludes a combination of integrated circuits\, systems and microwave engine ering. Starting from system level\, it will detail the design consideratio ns for non-multiplexed\, semi-autonomous\, transmon qubit state controller s (QSC) implemented in 14nm CMOS FinFET technology. The QSC includes an au gmented general-purpose digital processor that supports waveform generatio n and phase rotation operations combined with a low power current-mode sin gle sideband upconversion I/Q mixer-based RF arbitrary waveform generator (AWG). Implemented in 14nm CMOS FinFET technology\, the QSC generates cont rol signals in its target 4.5GHz to 5.5 GHz frequency range\, achieving an SFDR > 50dB for a signal bandwidth of 500MHz. With the controller operati ng in the 4K stage of a cryostat and connected to a transmon qubit in the cryostat’s millikelvin stage\, measured transmon T1 and T2 coherence tim es were 75.5μS and 73 μS\, respectively\, in each case comparable to res ults achieved using conventional room temperature controls. In further tes ts with transmons\, a qubit-limited error rate of 7.76×10-4 per Clifford gate is achieved\, again comparable to results achieved using room tempera ture controls. The QSC’s maximum RF output power is -18 dBm\, and power dissipation per qubit under active control is 23mW. An improved\, low-powe r design version that achieves half of this power will also be presented\, including some clocking solutions for large arrays.\n\nSpeaker(s): Sudipt o Chakraborty\n\nRoom: Maxwell\, Bldg: Department of Electronics and Telec ommunications\, Cittadella Politecnica\, V floor\, corso Duca degli Abruzz i 24\, Torino\, Piemonte\, Italy\, 10129 LOCATION:Room: Maxwell\, Bldg: Department of Electronics and Telecommunicat ions\, Cittadella Politecnica\, V floor\, corso Duca degli Abruzzi 24\, To rino\, Piemonte\, Italy\, 10129 ORGANIZER:fabrizio.bonani@polito.it SEQUENCE:9 SUMMARY:Challenges and opportunities for development of ultra-low power sca led quantum computing systems URL;VALUE=URI:https://events.vtools.ieee.org/m/579719 X-ALT-DESC:Description: <br /><p><span lang="EN-GB" style="font-size: 11.0p t\; mso-bidi-font-size: 12.0pt\; font-family: 'Arial'\,sans-serif\; mso-fa reast-font-family: 'Times New Roman'\; mso-ansi-language: EN-GB\; mso-fare ast-language: IT\; mso-bidi-language: AR-SA\;">This talk will cover practi cal challenges for the development of integrated system designs for next g eneration quantum computing which includes a combination of integrated cir cuits\, systems and microwave engineering. Starting from system level\, it will detail the design considerations for non-multiplexed\, semi-autonomo us\, transmon qubit state controllers (QSC) implemented in 14nm CMOS FinFE T technology. The QSC includes an augmented general-purpose digital proces sor that supports waveform generation and phase rotation operations combin ed with a low power current-mode single sideband upconversion I/Q mixer-ba sed RF arbitrary waveform generator (AWG). Implemented in 14nm CMOS FinFET technology\, the QSC generates control signals in its target 4.5GHz to 5. 5 GHz frequency range\, achieving an SFDR &gt\; 50dB for a signal bandwidt h of 500MHz. With the controller operating in the 4K stage of a cryostat a nd connected to a transmon qubit in the cryostat&rsquo\;s millikelvin stag e\, measured transmon T1 and T2 coherence times were 75.5&mu\;S and 73 &mu \;S\, respectively\, in each case comparable to results achieved using con ventional room temperature controls. In further tests with transmons\, a q ubit-limited error rate of 7.76&times\;10-4 per Clifford gate is achieved\ , again comparable to results achieved using room temperature controls. Th e QSC&rsquo\;s maximum RF output power is -18 dBm\, and power dissipation per qubit under active control is 23mW. An improved\, low-power design ver sion that achieves half of this power will also be presented\, including s ome clocking solutions for large arrays. </span></p> END:VEVENT END:VCALENDAR