Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit
We present measurements of coherence and successive decay dynamics of higher energy levels of a superconducting transmon qubit. By applying consecutive π pulses for each sequential transition frequency, we excite the qubit from the ground state up to its fourth excited level and characterize the dec...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
|
| Online Access: | http://hdl.handle.net/1721.1/92833 https://orcid.org/0000-0002-7069-1025 https://orcid.org/0000-0002-4674-2806 https://orcid.org/0000-0002-4436-6886 https://orcid.org/0000-0001-5430-9837 https://orcid.org/0000-0002-9604-2074 |
| _version_ | 1826199645559193600 |
|---|---|
| author | Peterer, Michael J. Bader, Samuel J. Jin, Xiaoyue Yan, Fei Kamal, Archana Gudmundsen, Theodore J. Leek, Peter J. Oliver, William D. Gustavsson, Simon Orlando, Terry Philip |
| author2 | Lincoln Laboratory |
| author_facet | Lincoln Laboratory Peterer, Michael J. Bader, Samuel J. Jin, Xiaoyue Yan, Fei Kamal, Archana Gudmundsen, Theodore J. Leek, Peter J. Oliver, William D. Gustavsson, Simon Orlando, Terry Philip |
| author_sort | Peterer, Michael J. |
| collection | MIT |
| description | We present measurements of coherence and successive decay dynamics of higher energy levels of a superconducting transmon qubit. By applying consecutive π pulses for each sequential transition frequency, we excite the qubit from the ground state up to its fourth excited level and characterize the decay and coherence of each state. We find the decay to proceed mainly sequentially, with relaxation times in excess of 20 μs for all transitions. We also provide a direct measurement of the charge dispersion of these levels by analyzing beating patterns in Ramsey fringes. The results demonstrate the feasibility of using higher levels in transmon qubits for encoding quantum information. |
| first_indexed | 2024-09-23T11:23:33Z |
| format | Article |
| id | mit-1721.1/92833 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:23:33Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/928332022-10-01T03:16:44Z Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit Peterer, Michael J. Bader, Samuel J. Jin, Xiaoyue Yan, Fei Kamal, Archana Gudmundsen, Theodore J. Leek, Peter J. Oliver, William D. Gustavsson, Simon Orlando, Terry Philip Lincoln Laboratory Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Research Laboratory of Electronics Peterer, Michael J. Bader, Samuel J. Jin, Xiaoyue Yan, Fei Kamal, Archana Gudmundsen, Theodore J. Orlando, Terry Philip Oliver, William D. Gustavsson, Simon We present measurements of coherence and successive decay dynamics of higher energy levels of a superconducting transmon qubit. By applying consecutive π pulses for each sequential transition frequency, we excite the qubit from the ground state up to its fourth excited level and characterize the decay and coherence of each state. We find the decay to proceed mainly sequentially, with relaxation times in excess of 20 μs for all transitions. We also provide a direct measurement of the charge dispersion of these levels by analyzing beating patterns in Ramsey fringes. The results demonstrate the feasibility of using higher levels in transmon qubits for encoding quantum information. United States. Dept. of Defense. Assistant Secretary of Defense for Research & Engineering (Air Force Contract FA8721-05-C-0002) United States. Army Research Office (Contract W911NF-14-1-0078) National Science Foundation (U.S.) (Grant PHY-1415514) Engineering and Physical Sciences Research Council 2015-01-13T19:55:32Z 2015-01-13T19:55:32Z 2015-01 2014-11 2015-01-06T23:00:02Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/92833 Peterer, Michael J., Samuel J. Bader, Xiaoyue Jin, Fei Yan, Archana Kamal, Theodore J. Gudmundsen, Peter J. Leek, Terry P. Orlando, William D. Oliver, and Simon Gustavsson. “Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit.” Physical Review Letters 114, no. 1 (January 2015). © 2015 American Physical Society https://orcid.org/0000-0002-7069-1025 https://orcid.org/0000-0002-4674-2806 https://orcid.org/0000-0002-4436-6886 https://orcid.org/0000-0001-5430-9837 https://orcid.org/0000-0002-9604-2074 en http://dx.doi.org/10.1103/PhysRevLett.114.010501 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Peterer, Michael J. Bader, Samuel J. Jin, Xiaoyue Yan, Fei Kamal, Archana Gudmundsen, Theodore J. Leek, Peter J. Oliver, William D. Gustavsson, Simon Orlando, Terry Philip Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit |
| title | Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit |
| title_full | Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit |
| title_fullStr | Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit |
| title_full_unstemmed | Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit |
| title_short | Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit |
| title_sort | coherence and decay of higher energy levels of a superconducting transmon qubit |
| url | http://hdl.handle.net/1721.1/92833 https://orcid.org/0000-0002-7069-1025 https://orcid.org/0000-0002-4674-2806 https://orcid.org/0000-0002-4436-6886 https://orcid.org/0000-0001-5430-9837 https://orcid.org/0000-0002-9604-2074 |
| work_keys_str_mv | AT peterermichaelj coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT badersamuelj coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT jinxiaoyue coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT yanfei coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT kamalarchana coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT gudmundsentheodorej coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT leekpeterj coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT oliverwilliamd coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT gustavssonsimon coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit AT orlandoterryphilip coherenceanddecayofhigherenergylevelsofasuperconductingtransmonqubit |