fix: Prevent execution with initial delay too short

qiboteam · Jan 8, 2025 · e653dde · e653dde
1 parent 1a8f9f7
commit e653dde
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/src/qibocal/protocols/coherence/cpmg.py b/src/qibocal/protocols/coherence/cpmg.py
@@ -47,6 +47,12 @@ def _acquisition(
         params.delay_between_pulses_end,
         params.delay_between_pulses_step,
     )
+    for q in targets:
+        # this is assuming that RX and RX90 have the same duration
+        assert (
+            params.delay_between_pulses_start / 2 / params.n
+            > platform.natives.single_qubit[q].RX()[0][1].duration
+        ), f"Initial delay too short for qubit {q}, minimum delay should be {platform.natives.single_qubit[q].RX()[0][1].duration * 2 * params.n}"
 
     sweeper = Sweeper(
         parameter=Parameter.duration,

diff --git a/tests/runcards/protocols.yml b/tests/runcards/protocols.yml
@@ -480,7 +480,7 @@ actions:
   - id: CPMG
     operation: cpmg
     parameters:
-      delay_between_pulses_start: 0
+      delay_between_pulses_start: 330
       delay_between_pulses_end: 400
       delay_between_pulses_step: 10
       nshots: 10