Robust Decoupling Techniques to Extend Quantum Coherence in Diamond
We experimentally demonstrate over 2 orders of magnitude increase in the room-temperature coherence time of nitrogen-vacancy centers in diamond by implementing decoupling techniques. We show that equal pulse spacing decoupling performs just as well as nonperiodic Uhrig decoupling and also allows us...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2011
|
| Online Access: | http://hdl.handle.net/1721.1/64434 |
| _version_ | 1826216311287447552 |
|---|---|
| author | Ryan, Colm A. Hodges, Jonathan S. Cory, David G. |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Ryan, Colm A. Hodges, Jonathan S. Cory, David G. |
| author_sort | Ryan, Colm A. |
| collection | MIT |
| description | We experimentally demonstrate over 2 orders of magnitude increase in the room-temperature coherence time of nitrogen-vacancy centers in diamond by implementing decoupling techniques. We show that equal pulse spacing decoupling performs just as well as nonperiodic Uhrig decoupling and also allows us to take advantage of revivals in the echo to explore the longest coherence times. At short times, we can extend the coherence of particular quantum states out from T[subscript 2]*=2.7 μs out to an effective T[subscript 2]>340 μs. For preserving arbitrary states we show the experimental importance of using pulse sequences that compensate the imperfections of individual pulses for all input states through judicious choice of the phase of the pulses. We use these compensated sequences to enhance the echo revivals and show a coherence time of over 1.6 ms in ultrapure natural abundance [superscript 13]C diamond. |
| first_indexed | 2024-09-23T16:45:44Z |
| format | Article |
| id | mit-1721.1/64434 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:45:44Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/644342022-10-03T08:06:30Z Robust Decoupling Techniques to Extend Quantum Coherence in Diamond Ryan, Colm A. Hodges, Jonathan S. Cory, David G. Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Ryan, Colm A. Ryan, Colm A. Cory, David G. We experimentally demonstrate over 2 orders of magnitude increase in the room-temperature coherence time of nitrogen-vacancy centers in diamond by implementing decoupling techniques. We show that equal pulse spacing decoupling performs just as well as nonperiodic Uhrig decoupling and also allows us to take advantage of revivals in the echo to explore the longest coherence times. At short times, we can extend the coherence of particular quantum states out from T[subscript 2]*=2.7 μs out to an effective T[subscript 2]>340 μs. For preserving arbitrary states we show the experimental importance of using pulse sequences that compensate the imperfections of individual pulses for all input states through judicious choice of the phase of the pulses. We use these compensated sequences to enhance the echo revivals and show a coherence time of over 1.6 ms in ultrapure natural abundance [superscript 13]C diamond. National Science Foundation (U.S.) United States. Defense Advanced Research Projects Agency (DARPA) (QuEST) United States. National Security Agency (ARO Contract No. W911NF-05-1-0469) Natural Sciences and Engineering Research Council of Canada (NSERC) 2011-06-15T14:18:00Z 2011-06-15T14:18:00Z 2010-11 2010-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/64434 Ryan, C. A., J. S. Hodges, and D. G. Cory. “Robust Decoupling Techniques to Extend Quantum Coherence in Diamond.” Physical Review Letters 105.20 (2010) : 200402. © 2010 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevLett.105.200402 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. application/pdf American Physical Society APS |
| spellingShingle | Ryan, Colm A. Hodges, Jonathan S. Cory, David G. Robust Decoupling Techniques to Extend Quantum Coherence in Diamond |
| title | Robust Decoupling Techniques to Extend Quantum Coherence in Diamond |
| title_full | Robust Decoupling Techniques to Extend Quantum Coherence in Diamond |
| title_fullStr | Robust Decoupling Techniques to Extend Quantum Coherence in Diamond |
| title_full_unstemmed | Robust Decoupling Techniques to Extend Quantum Coherence in Diamond |
| title_short | Robust Decoupling Techniques to Extend Quantum Coherence in Diamond |
| title_sort | robust decoupling techniques to extend quantum coherence in diamond |
| url | http://hdl.handle.net/1721.1/64434 |
| work_keys_str_mv | AT ryancolma robustdecouplingtechniquestoextendquantumcoherenceindiamond AT hodgesjonathans robustdecouplingtechniquestoextendquantumcoherenceindiamond AT corydavidg robustdecouplingtechniquestoextendquantumcoherenceindiamond |