{"action":"created","issue":{"url":"https://api.github.com/repos/Qiskit/qiskit-terra/issues/1142","repository_url":"https://api.github.com/repos/Qiskit/qiskit-terra","labels_url":"https://api.github.com/repos/Qiskit/qiskit-terra/issues/1142/labels{/name}","comments_url":"https://api.github.com/repos/Qiskit/qiskit-terra/issues/1142/comments","events_url":"https://api.github.com/repos/Qiskit/qiskit-terra/issues/1142/events","html_url":"https://github.com/Qiskit/qiskit-terra/issues/1142","id":374537174,"node_id":"MDU6SXNzdWUzNzQ1MzcxNzQ=","number":1142,"title":"cleaning up the Pauli object","user":{"login":"jaygambetta","id":15731369,"node_id":"MDQ6VXNlcjE1NzMxMzY5","avatar_url":"https://avatars2.githubusercontent.com/u/15731369?v=4","gravatar_id":"","url":"https://api.github.com/users/jaygambetta","html_url":"https://github.com/jaygambetta","followers_url":"https://api.github.com/users/jaygambetta/followers","following_url":"https://api.github.com/users/jaygambetta/following{/other_user}","gists_url":"https://api.github.com/users/jaygambetta/gists{/gist_id}","starred_url":"https://api.github.com/users/jaygambetta/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jaygambetta/subscriptions","organizations_url":"https://api.github.com/users/jaygambetta/orgs","repos_url":"https://api.github.com/users/jaygambetta/repos","events_url":"https://api.github.com/users/jaygambetta/events{/privacy}","received_events_url":"https://api.github.com/users/jaygambetta/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"chunfuchen","id":7079318,"node_id":"MDQ6VXNlcjcwNzkzMTg=","avatar_url":"https://avatars3.githubusercontent.com/u/7079318?v=4","gravatar_id":"","url":"https://api.github.com/users/chunfuchen","html_url":"https://github.com/chunfuchen","followers_url":"https://api.github.com/users/chunfuchen/followers","following_url":"https://api.github.com/users/chunfuchen/following{/other_user}","gists_url":"https://api.github.com/users/chunfuchen/gists{/gist_id}","starred_url":"https://api.github.com/users/chunfuchen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chunfuchen/subscriptions","organizations_url":"https://api.github.com/users/chunfuchen/orgs","repos_url":"https://api.github.com/users/chunfuchen/repos","events_url":"https://api.github.com/users/chunfuchen/events{/privacy}","received_events_url":"https://api.github.com/users/chunfuchen/received_events","type":"User","site_admin":false},"assignees":[{"login":"chunfuchen","id":7079318,"node_id":"MDQ6VXNlcjcwNzkzMTg=","avatar_url":"https://avatars3.githubusercontent.com/u/7079318?v=4","gravatar_id":"","url":"https://api.github.com/users/chunfuchen","html_url":"https://github.com/chunfuchen","followers_url":"https://api.github.com/users/chunfuchen/followers","following_url":"https://api.github.com/users/chunfuchen/following{/other_user}","gists_url":"https://api.github.com/users/chunfuchen/gists{/gist_id}","starred_url":"https://api.github.com/users/chunfuchen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chunfuchen/subscriptions","organizations_url":"https://api.github.com/users/chunfuchen/orgs","repos_url":"https://api.github.com/users/chunfuchen/repos","events_url":"https://api.github.com/users/chunfuchen/events{/privacy}","received_events_url":"https://api.github.com/users/chunfuchen/received_events","type":"User","site_admin":false},{"login":"antoniomezzacapo","id":30698465,"node_id":"MDQ6VXNlcjMwNjk4NDY1","avatar_url":"https://avatars3.githubusercontent.com/u/30698465?v=4","gravatar_id":"","url":"https://api.github.com/users/antoniomezzacapo","html_url":"https://github.com/antoniomezzacapo","followers_url":"https://api.github.com/users/antoniomezzacapo/followers","following_url":"https://api.github.com/users/antoniomezzacapo/following{/other_user}","gists_url":"https://api.github.com/users/antoniomezzacapo/gists{/gist_id}","starred_url":"https://api.github.com/users/antoniomezzacapo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/antoniomezzacapo/subscriptions","organizations_url":"https://api.github.com/users/antoniomezzacapo/orgs","repos_url":"https://api.github.com/users/antoniomezzacapo/repos","events_url":"https://api.github.com/users/antoniomezzacapo/events{/privacy}","received_events_url":"https://api.github.com/users/antoniomezzacapo/received_events","type":"User","site_admin":false}],"milestone":null,"comments":11,"created_at":"2018-10-26T20:31:06Z","updated_at":"2018-10-30T00:44:03Z","closed_at":null,"author_association":"MEMBER","body":"The tools.qi.pauli is important and will stay around. It is slow with int vs bools and needs to be cleaned up. Richard and Antonio will work on a proposal for what should be methods of Pauli and what should function in there and make tests for it. \r\n\r\nSome questions and related to the ordering issue I make soon. \r\n\r\nThe Pauli has internal two vectors which are ordered \r\n\r\nv = [q0,q1,q2,q3, .... qn ], w =  [q0,q1,q2,q3, .... qn ] \r\n\r\nit makes a matrix which is ordered \r\n\r\nqn x .... q3 x q2 x q1 x q0 where x is tensor product. \r\n\r\nit makes a string label (eg. 'XIZ...') which is ordered \r\n\r\nq0q1q2 \r\n\r\nMy question for all is qiskit matrix is defined as the largest qubit to the left, I don't care what the internal of the Pauli uses (v,w), but the label what is our convention.\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/Qiskit/qiskit-terra/issues/comments/434131714","html_url":"https://github.com/Qiskit/qiskit-terra/issues/1142#issuecomment-434131714","issue_url":"https://api.github.com/repos/Qiskit/qiskit-terra/issues/1142","id":434131714,"node_id":"MDEyOklzc3VlQ29tbWVudDQzNDEzMTcxNA==","user":{"login":"jaygambetta","id":15731369,"node_id":"MDQ6VXNlcjE1NzMxMzY5","avatar_url":"https://avatars2.githubusercontent.com/u/15731369?v=4","gravatar_id":"","url":"https://api.github.com/users/jaygambetta","html_url":"https://github.com/jaygambetta","followers_url":"https://api.github.com/users/jaygambetta/followers","following_url":"https://api.github.com/users/jaygambetta/following{/other_user}","gists_url":"https://api.github.com/users/jaygambetta/gists{/gist_id}","starred_url":"https://api.github.com/users/jaygambetta/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jaygambetta/subscriptions","organizations_url":"https://api.github.com/users/jaygambetta/orgs","repos_url":"https://api.github.com/users/jaygambetta/repos","events_url":"https://api.github.com/users/jaygambetta/events{/privacy}","received_events_url":"https://api.github.com/users/jaygambetta/received_events","type":"User","site_admin":false},"created_at":"2018-10-30T00:44:03Z","updated_at":"2018-10-30T00:44:03Z","author_association":"MEMBER","body":"@chriseclectic what does this mean\r\n\r\n`\r\nThere should be tensor product kron method that returns a new Pauli combining the current with the new ones (think np.array.kron)`"}}
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