{"action":"created","issue":{"url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/issues/280","repository_url":"https://api.github.com/repos/QISKit/qiskit-sdk-py","labels_url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/issues/280/labels{/name}","comments_url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/issues/280/comments","events_url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/issues/280/events","html_url":"https://github.com/QISKit/qiskit-sdk-py/pull/280","id":295223378,"number":280,"title":"updated state_fidelity convention","user":{"login":"chriseclectic","id":2235104,"avatar_url":"https://avatars2.githubusercontent.com/u/2235104?v=4","gravatar_id":"","url":"https://api.github.com/users/chriseclectic","html_url":"https://github.com/chriseclectic","followers_url":"https://api.github.com/users/chriseclectic/followers","following_url":"https://api.github.com/users/chriseclectic/following{/other_user}","gists_url":"https://api.github.com/users/chriseclectic/gists{/gist_id}","starred_url":"https://api.github.com/users/chriseclectic/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chriseclectic/subscriptions","organizations_url":"https://api.github.com/users/chriseclectic/orgs","repos_url":"https://api.github.com/users/chriseclectic/repos","events_url":"https://api.github.com/users/chriseclectic/events{/privacy}","received_events_url":"https://api.github.com/users/chriseclectic/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-02-07T17:22:03Z","updated_at":"2018-02-08T05:44:12Z","closed_at":null,"author_association":"MEMBER","pull_request":{"url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/pulls/280","html_url":"https://github.com/QISKit/qiskit-sdk-py/pull/280","diff_url":"https://github.com/QISKit/qiskit-sdk-py/pull/280.diff","patch_url":"https://github.com/QISKit/qiskit-sdk-py/pull/280.patch"},"body":"Change the definition of `state_fidelity` to be consistent with IBM quantum group research papers. #278 \r\n\r\n## Description\r\n\r\nThe new definition is that:\r\n- Pure states: F(|a>, |b>) = |<a|b>|^2.\r\n- Mixed states: F(rho1, rho2) = Tr[sqrt(sqrt(rho1).rho2.sqrt(rho1))] ^ 2\r\n\r\n## Types of changes\r\n- [x] Bug fix (non-breaking change which fixes an issue)\r\n- [ ] New feature (non-breaking change which adds functionality)\r\n- [ ] Breaking change (fix or feature that would cause existing functionality to change)\r\n\r\n## Checklist:\r\n- [x] My code follows the code style of this project.\r\n- [x] My change requires a change to the documentation.\r\n- [x] I have updated the documentation accordingly.\r\n- [x] I have read the **CONTRIBUTING** document.\r\n- [x] I have added tests to cover my changes.\r\n- [x] All new and existing tests passed."},"comment":{"url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/issues/comments/364009020","html_url":"https://github.com/QISKit/qiskit-sdk-py/pull/280#issuecomment-364009020","issue_url":"https://api.github.com/repos/QISKit/qiskit-sdk-py/issues/280","id":364009020,"user":{"login":"chriseclectic","id":2235104,"avatar_url":"https://avatars2.githubusercontent.com/u/2235104?v=4","gravatar_id":"","url":"https://api.github.com/users/chriseclectic","html_url":"https://github.com/chriseclectic","followers_url":"https://api.github.com/users/chriseclectic/followers","following_url":"https://api.github.com/users/chriseclectic/following{/other_user}","gists_url":"https://api.github.com/users/chriseclectic/gists{/gist_id}","starred_url":"https://api.github.com/users/chriseclectic/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chriseclectic/subscriptions","organizations_url":"https://api.github.com/users/chriseclectic/orgs","repos_url":"https://api.github.com/users/chriseclectic/repos","events_url":"https://api.github.com/users/chriseclectic/events{/privacy}","received_events_url":"https://api.github.com/users/chriseclectic/received_events","type":"User","site_admin":false},"created_at":"2018-02-08T05:44:12Z","updated_at":"2018-02-08T05:44:12Z","author_association":"MEMBER","body":"@jaygambetta @ajavadia It looks like the test failing here isn't to do with the quantum experience, It's that the local_qasm_simulator is sometimes timing out when running the 2-qubit process tomography test. This test involves compiling and executing 144 circuits for 2000 shots each and the default seems to timeout after 60 second."}}
{"actor":{"display_login":"chriseclectic"}}