BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT DTSTART:20250309T030000 TZOFFSETFROM:-0600 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:CDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20241103T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:CST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20241115T215525Z UID:F2C1D49E-C437-4606-8F5A-08355EABF57D DTSTART;TZID=America/Chicago:20241112T150000 DTEND;TZID=America/Chicago:20241112T160000 DESCRIPTION:This talk will cover practical challenges for cryogenic CMOS de signs for next-generation quantum computing. Starting from system level\, it will detail the design considerations for a non-multiplexed\, semi-auto nomous\, transmon qubit state controller (QSC) implemented in 14nm CMOS Fi nFET technology. The QSC includes an augmented general-purpose digital pro cessor that supports waveform generation and phase rotation operations com bined with a low-power current-mode single-sideband up-conversion I/Q mixe r-based RF arbitrary waveform generator (AWG). Implemented in 14nm CMOS Fi nFET technology\, the QSC generates control signals in its target 4.5GHz t o 5.5 GHz frequency range\, achieving an SFDR > 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’s millikelvin stage\, m easured transmon T1 and T2 coherence times were 75.7μs and 73μs\, respec tively\, in each case comparable to results achieved using conventional ro om temperature controls. In further tests with transmons\, a qubit-limited error rate of 7.76×10-4 per Clifford gate is achieved\, again comparable to results achieved using room temperature controls. The QSC’s maximum RF output power is -18dBm\, and power dissipation per qubit under active c ontrol is 23mW.\n\nSpeaker(s): Sudipto Chakraborty\n\nRoom: Room 300\, Bld g: SST Building\, Rice University\, 6100 Main St\, Houston\, Texas\, Unite d States\, 77005 LOCATION:Room: Room 300\, Bldg: SST Building\, Rice University\, 6100 Main St\, Houston\, Texas\, United States\, 77005 ORGANIZER:taiyun.chi@rice.edu SEQUENCE:9 SUMMARY:IEEE SSCS Houston Chapter Seminar: Low-power Cryo-CMOS Design for Q uantum Computing Applications URL;VALUE=URI:https://events.vtools.ieee.org/m/445506 X-ALT-DESC:Description: <br /><p class="MsoNormal" style="margin-bottom: 3. 0pt\; text-align: justify\; text-justify: inter-ideograph\; line-height: n ormal\; background: white\;"><span style="font-family: 'Times New Roman'\, serif\; mso-fareast-font-family: 'Times New Roman'\;">This talk will cover practical challenges for cryogenic CMOS designs for next-generation quant um computing. Starting from system level\, it will detail the design consi derations for a non-multiplexed\, semi-autonomous\, transmon qubit state c ontroller (QSC) implemented in 14nm CMOS FinFET technology. The QSC includ es an augmented general-purpose digital processor that supports waveform g eneration and phase rotation operations combined with a low-power current- mode single-sideband up-conversion I/Q mixer-based RF arbitrary waveform g enerator (AWG). Implemented in 14nm CMOS FinFET technology\, the QSC gener ates control signals in its target 4.5GHz to 5.5 GHz frequency range\, ach ieving an SFDR &gt\; 50dB for a signal bandwidth of 500MHz. With the contr oller operating in the 4K stage of a cryostat and connected to a transmon qubit in the cryostat&rsquo\;s millikelvin stage\, measured transmon T1 an d T2 coherence times were 75.7&mu\;s and 73&mu\;s\, respectively\, in each case comparable to results achieved using conventional room temperature c ontrols. In further tests with transmons\, a qubit-limited error rate of 7 .76&times\;10<sup>-4</sup> 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 -18dBm\, and power dissipation per qubit under ac tive control is 23mW.</span></p> END:VEVENT END:VCALENDAR