BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20230312T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20231105T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20231019T014941Z UID:E640F8C2-0C8B-440D-A35F-6E90472FDEE2 DTSTART;TZID=America/Los_Angeles:20230606T160000 DTEND;TZID=America/Los_Angeles:20230606T173000 DESCRIPTION:Distinguished Lecturer technical seminar with the following abs tract: This talk will cover practical challenges for cryogenic CMOS design s for next generation quantum computing. Starting from a roadmap level und erstanding and future trends\, it will detail the design considerations fo r a non-multiplexed\, semi-autonomous\, transmon qubit state controller (Q SC) implemented in 14nm CMOS FinFET technology. The QSC includes an augmen ted general-purpose digital processor that supports waveform generation an d phase rotation operations combined with a low power current-mode single sideband upconversion I/Q mixer-based 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 SFD R > 50dB for a signal bandwidth of 500MHz. With the controller operating i n the 4K stage of a cryostat and connected to a transmon qubit in the cryo stat’s millikelvin stage\, measured transmon T1 and T2 coherence times w ere 75.7μs and 73μs\, respectively\, in each case comparable to results achieved using conventional room temperature controls. In further tests wi th transmons\, a qubit-limited error rate of 7.76x10^-4 per Clifford gate is achieved\, again comparable to results achieved using room temperature controls. The QSC’s maximum RF output power is -18 dBm\, and power dissi pation per qubit under active control is 23mW.\n\nCo-sponsored by: CH07098 - Vancouver/Victoria Sect Jt Chapter\, CAS04\n\nSpeaker(s): Sudipto Chakr aborty\, \n\nRoom: MCLD 3038\, Bldg: MacLeod Building \, 2356 Main Mall\, Vancouver\, British Columbia\, Canada\, V6T 1Z4\, Virtual: https://events. vtools.ieee.org/m/363109 LOCATION:Room: MCLD 3038\, Bldg: MacLeod Building \, 2356 Main Mall\, Vanco uver\, British Columbia\, Canada\, V6T 1Z4\, Virtual: https://events.vtool s.ieee.org/m/363109 ORGANIZER:sudip@ece.ubc.ca SEQUENCE:49 SUMMARY:Cryogenic CMOS for low power quantum computing applications: Roadma p\, present status\, challenges and opportunities URL;VALUE=URI:https://events.vtools.ieee.org/m/363109 X-ALT-DESC:Description: <br /><div class="page" title="Page 1">\n<div class ="layoutArea">\n<div class="column">\n<p>Distinguished Lecturer technical seminar with the following abstract: This talk will cover practical challe nges for cryogenic CMOS designs for next generation quantum computing. Sta rting from a roadmap level understanding and future trends\, it will detai l the design considerations for a non-multiplexed\, semi-autonomous\, tran smon qubit state controller (QSC) implemented in 14nm CMOS FinFET technolo gy. The QSC includes an augmented general-purpose digital processor that s upports waveform generation and phase rotation operations combined with a low power current-mode single sideband upconversion I/Q mixer-based RF arb itrary waveform generator (AWG). Implemented in 14nm CMOS FinFET technolog y\, the QSC generates control signals in its target 4.5GHz to 5.5 GHz freq uency range\, achieving an SFDR &gt\; 50dB for a signal bandwidth of 500MH z. With the controller operating in the 4K stage of a cryostat and connect ed to a transmon qubit in the cryostat&rsquo\;s millikelvin stage\, measur ed transmon T1 and T2 coherence times were 75.7&mu\;s and 73&mu\;s\, respe ctively\, in each case comparable to results achieved using conventional r oom temperature controls. In further tests with transmons\, a qubit-limite d error rate of 7.76x10^-4 per Clifford gate is achieved\, again comparabl e to results achieved using room temperature controls. The QSC&rsquo\;s ma ximum RF output power is -18 dBm\, and power dissipation per qubit under a ctive control is 23mW.</p>\n</div>\n</div>\n</div> END:VEVENT END:VCALENDAR