Fermilab Redmine

11/19/2020

06:05 PM Superconducting Quantum Computing Wiki edit: How_to_configure_Kerberos_and_Git_on_Windows_10_64-bit (#6)

06:04 PM Superconducting Quantum Computing Wiki edit: How_to_configure_Kerberos_and_Git_on_Windows_10_64-bit (#5)

06:04 PM Superconducting Quantum Computing Wiki edit: How_to_configure_Kerberos_and_Git_on_Windows_10_64-bit (#4)

06:04 PM Superconducting Quantum Computing Wiki edit: How_to_configure_Kerberos_and_Git_on_Windows_10_64-bit (#3)

11/16/2020

12:29 PM Superconducting Quantum Computing Task #25087: DR1_Run9(3GHz cavity - Rigetti qubit test)

Tuned 3 GHz JPA From Pappas. Gain is +16 dB.
bias: 822 uA
Pump 2.999GHz; -19.93 dBm
!Pappas_3GHz.png!

09/02/2020

10:04 AM Runs Task #24877: DR_1_Run_8

Tried to test pulsed setup with new switches: measured Pappas' qubit readout. As expected, power levels went down by ...

09/01/2020

06:08 PM Runs Revision 544be089 (dr1_run_8): changed wiring

03:32 PM Runs Task #24877: DR_1_Run_8

CW measurement of chi_0 shift of fundamental mode of RI-2 cavity.
High power(20dBm, black)
Low power(-10dBm, blue)
...

08/31/2020

05:18 PM Runs Task #24877: DR_1_Run_8

estimation of TI-1 Q from decay (slightly better than TI-2)
decay time from -64 dB to e times (green line) = 39 ms
...

05:01 PM Runs Task #24877: DR_1_Run_8

We found the resonance of RI-1,
freq = 2.985951150 GHz
Mixing chamber temperature = 65 mK (It is increased a little...