Update device calibration (#310)

Update gate time values to SI units (seconds) and current available calibration data. This is especially relevant in the light of the new MQTPredictor reward function `expected_success_probability`. IBM, OQC (and IQM) calibration data is not supplied in seconds (hence transformation during import) IONQ, Rigetti calibration data is already specified in seconds Quantinuum - no information on timescales
cda-tum · Jun 13, 2024 · 9145701 · 9145701
2 parents a552522 + 7bce49f
commit 9145701
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diff --git a/src/mqt/bench/calibration_files/ionq_aria1_calibration.json b/src/mqt/bench/calibration_files/ionq_aria1_calibration.json
@@ -610,11 +610,11 @@
     "spam": { "mean": 0.9993 }
   },
   "timing": {
-    "t1": 10000,
-    "t2": 0.2,
+    "t1": 100,
+    "t2": 1,
     "1q": 0.000135,
-    "2q": 0.0007,
-    "readout": 0.00013,
+    "2q": 0.0006,
+    "readout": 0.0003,
     "reset": 0.00002
   }
 }
diff --git a/src/mqt/bench/calibration_files/ionq_harmony_calibration.json b/src/mqt/bench/calibration_files/ionq_harmony_calibration.json
@@ -115,12 +115,12 @@
     [10, 9]
   ],
   "fidelity": {
-    "1q": { "mean": 0.9986 },
-    "2q": { "mean": 0.985 },
+    "1q": { "mean": 0.9985 },
+    "2q": { "mean": 0.9614 },
     "spam": { "mean": 0.99752 }
   },
   "timing": {
-    "t1": 10000,
+    "t1": 100,
     "t2": 0.2,
     "1q": 0.00001,
     "2q": 0.0002,

diff --git a/src/mqt/bench/calibration_files/oqc_lucy_calibration.json b/src/mqt/bench/calibration_files/oqc_lucy_calibration.json
@@ -74,35 +74,35 @@
     "two_qubit": {
       "0-1": {
         "coupling": { "control_qubit": 0.0, "target_qubit": 1.0 },
-        "fCX": 0.9453766394259683
+        "fECR": 0.9453766394259683
       },
       "0-7": {
         "coupling": { "control_qubit": 0.0, "target_qubit": 7.0 },
-        "fCX": 0.9490327707249107
+        "fECR": 0.9490327707249107
       },
       "1-2": {
         "coupling": { "control_qubit": 1.0, "target_qubit": 2.0 },
-        "fCX": 0.937420422997459
+        "fECR": 0.937420422997459
       },
       "2-3": {
         "coupling": { "control_qubit": 2.0, "target_qubit": 3.0 },
-        "fCX": 0.9433658127189578
+        "fECR": 0.9433658127189578
       },
       "4-3": {
         "coupling": { "control_qubit": 4.0, "target_qubit": 3.0 },
-        "fCX": 0.9580658927174651
+        "fECR": 0.9580658927174651
       },
       "4-5": {
         "coupling": { "control_qubit": 4.0, "target_qubit": 5.0 },
-        "fCX": 0.9716473635543361
+        "fECR": 0.9716473635543361
       },
       "6-5": {
         "coupling": { "control_qubit": 6.0, "target_qubit": 5.0 },
-        "fCX": 0.9497968896117499
+        "fECR": 0.9497968896117499
       },
       "7-6": {
         "coupling": { "control_qubit": 7.0, "target_qubit": 6.0 },
-        "fCX": 0.9456903499165887
+        "fECR": 0.9456903499165887
       }
     }
   }

diff --git a/src/mqt/bench/devices/ibm.py b/src/mqt/bench/devices/ibm.py
@@ -82,17 +82,20 @@ def import_backend(cls, path: Path) -> Device:
                 "x": 1 - ibm_calibration["properties"][str(qubit)]["eX"],
             }
             calibration.readout_fidelity[qubit] = 1 - ibm_calibration["properties"][str(qubit)]["eRO"]
-            calibration.readout_duration[qubit] = ibm_calibration["properties"][str(qubit)]["tRO"]
-            calibration.t1[qubit] = ibm_calibration["properties"][str(qubit)]["T1"]
-            calibration.t2[qubit] = ibm_calibration["properties"][str(qubit)]["T2"]
+            # data in nanoseconds, convert to SI unit (seconds)
+            calibration.readout_duration[qubit] = ibm_calibration["properties"][str(qubit)]["tRO"] * 1e-9
+            # data in microseconds, convert to SI unit (seconds)
+            calibration.t1[qubit] = ibm_calibration["properties"][str(qubit)]["T1"] * 1e-6
+            calibration.t2[qubit] = ibm_calibration["properties"][str(qubit)]["T2"] * 1e-6
 
         for qubit1, qubit2 in device.coupling_map:
             edge = f"{qubit1}_{qubit2}"
 
             error = ibm_calibration["properties"][str(qubit1)]["eCX"][edge]
             calibration.two_qubit_gate_fidelity[(qubit1, qubit2)] = {"cx": 1 - error}
 
-            duration = ibm_calibration["properties"][str(qubit1)]["tCX"][edge]
+            # data in nanoseconds, convert to SI unit (seconds)
+            duration = ibm_calibration["properties"][str(qubit1)]["tCX"][edge] * 1e-9
             calibration.two_qubit_gate_duration[(qubit1, qubit2)] = {"cx": duration}
 
         device.calibration = calibration

diff --git a/src/mqt/bench/devices/oqc.py b/src/mqt/bench/devices/oqc.py
@@ -32,7 +32,7 @@ class TwoQubitProperties(TypedDict):
     """Class to store the properties of a two-qubit gate."""
 
     coupling: Coupling
-    fCX: float
+    fECR: float
 
 
 class Properties(TypedDict):
@@ -92,12 +92,13 @@ def import_backend(cls, path: Path) -> Device:
                 gate: oqc_calibration["properties"]["one_qubit"][str(qubit)]["fRB"] for gate in ["rz", "sx", "x"]
             }
             calibration.readout_fidelity[qubit] = oqc_calibration["properties"]["one_qubit"][str(qubit)]["fRO"]
-            calibration.t1[qubit] = oqc_calibration["properties"]["one_qubit"][str(qubit)]["T1"]
-            calibration.t2[qubit] = oqc_calibration["properties"]["one_qubit"][str(qubit)]["T2"]
+            # data in microseconds, convert to SI unit (seconds)
+            calibration.t1[qubit] = oqc_calibration["properties"]["one_qubit"][str(qubit)]["T1"] * 1e-6
+            calibration.t2[qubit] = oqc_calibration["properties"]["one_qubit"][str(qubit)]["T2"] * 1e-6
 
         for qubit1, qubit2 in device.coupling_map:
             calibration.two_qubit_gate_fidelity[(qubit1, qubit2)] = dict.fromkeys(
-                ["ecr"], oqc_calibration["properties"]["two_qubit"][f"{qubit1}-{qubit2}"]["fCX"]
+                ["ecr"], oqc_calibration["properties"]["two_qubit"][f"{qubit1}-{qubit2}"]["fECR"]
             )
         device.calibration = calibration
         return device