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quantum_device_profiler's Introduction

Quantum Devices Profiler

Setup:

Configuration Files:

Configuration File Templates for all files

Resonator Finder:

{
  "expected_resonances":[floats], #GHz
  "res_type":[strings],
  "electrical_delay":float, #ns
  "IF_bandwidth":int, #KHz
  "averaging":int
}

for example

{
  "expected_resonances":[5.456, 6.12],
  "res_type":["notch","reflection"],
  "electrical_delay":112,
  "IF_bandwidth":1,
  "averaging":10
}

Instrument Server:

{
  "instr_uid":"",
  "instr_name":"",
  "instr_config": {}
}

for example

{
  "instr_uid": "RS_LO",
  "instr_name": "Rohde&Schwarz RF Source",
  "instr_config": {"interface":"TCPIP","address":"192.000.0.000","startup":"Get config")}
}

Functionality Needed:

At Zero Flux

  • Find Resonances through Interfacing with VNA

  • Use resonator_profiling.py to fit the resonances and record the stats

  • Take a Power Sweep with VNA and DA for each resonance and record the power at which the resonance goes non-linear and power required for 1 photon

  • Check for flux tunability through VNA and SMU

  • Take a flux sweep with VNA and SMU

  • Fit the flux curve and extract parameters of interest

Extra Functionality for NBR Devices:

  • Check for QP trapping (i.e. Multiple Lorentzian peaks test)
  • Power Sweep at finite flux
  • Test for QP clearing using an LO, VNA and SMU (i.e. sharpening of resonance)

Extra Functionality for Dissipator Devices:

Extra Functionality for JPA:

Extra Functionality for TWPA:

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