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Issues list

Incorrect Behavior of Transformer eject_phased_paulis with Mid-Circuit Measurements kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6507 opened Mar 20, 2024 by p51lee
QASM roundtrip cause inconsistent results for a circuit containing YYPowGate or XXPowGate with global shift area/interop area/qasm kind/bug-report Something doesn't seem to work. status/needs-agreed-design We want to do this, but it needs an agreed upon design before implementation triage/needs-feasibility [Feature requests] Needs design work to prove feasibility before accepting
#6488 opened Mar 10, 2024 by jiannanWang 2025-T7: Ensure interoperability with other circuit representations
9
Can't simulate a repeated CircuitOperation that contains a repeat_until CircuitOperation area/classical/control area/classical/measurements area/simulation good first issue This issue can be resolved by someone who is not familiar with the codebase. A good starting issue. kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6446 opened Feb 6, 2024 by vtomole
1
@telescopic
4
Using processor: string is incorrect kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6427 opened Jan 26, 2024 by eliottrosenberg
@senecameeks
5
cirq.approx_eq is inconsistent for sets good for learning For beginners in QC, this will help picking up some knowledge. Bit harder than "good first issues" good part time project A meaty non-urgent issue with a substantial amount of work to be done. kind/bug-report Something doesn't seem to work. no QC knowledge needed Want to contribute to Cirq, but don't know quantum computing? This issue is for you. status/needs-agreed-design We want to do this, but it needs an agreed upon design before implementation triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6376 opened Dec 6, 2023 by richrines1
3
synchronize_terminal_measurements() misorders measurements with the same key kind/bug-report Something doesn't seem to work. triage/needs-feasibility [Feature requests] Needs design work to prove feasibility before accepting triage/needs-more-evidence [Feature requests] Seems plausible, but maintainers are not convinced about the use cases yet
#6329 opened Oct 25, 2023 by richrines1
12
QSimcirq does not implement measurement noise good for learning For beginners in QC, this will help picking up some knowledge. Bit harder than "good first issues" kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6305 opened Sep 28, 2023 by bramathon
4
PauliMeasurementGate fails to construct when given an empty observable kind/bug-report Something doesn't seem to work. status/needs-agreed-design We want to do this, but it needs an agreed upon design before implementation triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6136 opened Jun 11, 2023 by Strilanc
1
Cirq 1.0 statevector return type requirements for simulators consume more RAM after a qsim run kind/bug-report Something doesn't seem to work. status/needs-agreed-design We want to do this, but it needs an agreed upon design before implementation triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6107 opened May 25, 2023 by rht
7
equivalent measurements evaluate as unequal good first issue This issue can be resolved by someone who is not familiar with the codebase. A good starting issue. kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#6093 opened May 12, 2023 by richrines1
@TarunSinghania
2
drop_terminal_measurements fails for measurements on dimension>2 Qids area/circuits area/measurements good first issue This issue can be resolved by someone who is not familiar with the codebase. A good starting issue. good for learning For beginners in QC, this will help picking up some knowledge. Bit harder than "good first issues" kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5994 opened Feb 2, 2023 by richrines1
1
@madhurimaparuchuri
9
Update QasmUGate to support symbols in parameters. area/gates area/interop area/parameters parameter resolution, parameterized gates, operations area/qasm good first issue This issue can be resolved by someone who is not familiar with the codebase. A good starting issue. good for learning For beginners in QC, this will help picking up some knowledge. Bit harder than "good first issues" kind/bug-report Something doesn't seem to work. no QC knowledge needed Want to contribute to Cirq, but don't know quantum computing? This issue is for you. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5985 opened Jan 22, 2023 by ArfatSalman 2025-T7: Ensure interoperability with other circuit representations
@ArfatSalman
7
Support for Symbols in QasmUGate? area/decompose area/parameters parameter resolution, parameterized gates, operations kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5983 opened Jan 18, 2023 by ArfatSalman
Incorrect unitary of controlled QasmUGate? area/gates area/qasm kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5959 opened Dec 11, 2022 by ArfatSalman
4
Histogram function doesn't fail for non-bool values. area/simulation kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5926 opened Oct 18, 2022 by dubey-sukhsagar
1
Density matrix traces not remaining at 1 after certain operations area/density-matrix-simulator area/simulation kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5916 opened Oct 11, 2022 by mvchalupnik
1
6
Benchmark transformers.routing.RouteCQC takes a lot of time to setup area/performance kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5893 opened Sep 27, 2022 by dkothari11 2025-T1: Performance improvements for large circuits
1
Misaligned two-qubit gate diagrams for deep circuits area/colab good first issue This issue can be resolved by someone who is not familiar with the codebase. A good starting issue. kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5719 opened Jul 11, 2022 by andbe91
5
In SVG diagrams, classical bits look identical to quantum bits area/circuits area/visualization kind/bug-report Something doesn't seem to work. no QC knowledge needed Want to contribute to Cirq, but don't know quantum computing? This issue is for you. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5689 opened Jul 8, 2022 by Strilanc 2025-T4: Improve capabilities for circuit visualization
In text diagrams, writing a classical bit is shown as a control while using it as a control is not shown as a control area/circuits area/visualization kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5688 opened Jul 8, 2022 by Strilanc 2025-T4: Improve capabilities for circuit visualization
5
broken tutorial on identifying_hardware_changes.ipynb area/tutorials kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5588 opened Jun 23, 2022 by pavoljuhas
@verult @wcourtney @NoureldinYosri
2
Example code for installing Cirq is not portable outside of notebook environments area/colab area/imports area/install kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5345 opened May 11, 2022 by mhucka
2
Cirq-ionq uses unparseable ASCII character in encoding area/ecosystem area/interop area/json area/serialization kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5216 opened Apr 7, 2022 by Cynocracy 2025-T3: Optimize circuit serialization
@Cynocracy
7
cirq-web shows a blank window for circuits with no-target operations interface/cirq-web kind/bug-report Something doesn't seem to work. triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#5172 opened Apr 1, 2022 by Strilanc
mypy type check errors with default argument to cirq protocols. area/mypy area/protocols kind/bug-report Something doesn't seem to work. priority/p2 Next release should contain it triage/accepted A consensus emerged that this bug report, feature request, or other action should be worked on
#4992 opened Feb 14, 2022 by tanujkhattar
2 tasks
1
ProTip! What’s not been updated in a month: updated:<2024-12-09.