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Robert Calderbank, Charles S. Sydnor Professor of Computer Science and Professor of Mathematics and Electrical and Computer Engineering and Physics and Director of Information Initiative at Duke

Robert Calderbank

Robert Calderbank is Director of the Information Initiative at Duke University, where he is Professor of Electrical Engineering, Computer Science and Mathematics. He joined Duke in 2010, completed a 3 year term as Dean of Natural Sciences in August 2013, and also served as Interim Director of the Duke Initiative in Innovation and Entrepreneurship in 2012. Before joining Duke he was Professor of Electrical Engineering and Mathematics at Princeton University where he also directed the Program in Applied and Computational Mathematics.


Before joining Princeton University Dr. Calderbank was Vice President for Research at AT&T. As Vice President for Research he managed AT&T intellectual property, and he was responsible for licensing revenue. AT&T Labs was the first of a new type of research lab where masses of data generated by network services became a giant sandbox in which fundamental discoveries in information science became a source of commercial advantage


At Duke, Dr. Calderbank works with researchers from the Duke Center for Autism and Brain Development, developing information technology that is able to capture a full spectrum of behavior in very young children. By supporting more consistent and cost-effective early diagnosis, the team is increasing the opportunity for early interventions that have proven very effective.


At the start of his career at Bell Labs, Dr. Calderbank developed voiceband modem technology that was widely licensed and incorporated in over a billion devices. Voiceband means the signals are audible so these modems burped and squeaked as they connected to the internet. One of these products was the AT&T COMSPHERE® modem which was the fastest modem in the world in 1994 – at 33.6kb/s!   


Together with Peter Shor and colleagues at AT&T Labs Dr. Calderbank developed the group theoretic framework for quantum error correction. This framework changed the way physicists view quantum entanglement, and provided the foundation for fault tolerant quantum computation.


Dr. Calderbank has also developed technology that improves the speed and reliability of wireless communication by correlating signals across several transmit antennas. Invented in 1996, this space-time coding technology has been incorporated in a broad range of 3G, 4G and 5G wireless standards. He served on the Technical Advisory Board of Flarion Technologies a wireless infrastructure company founded by Rajiv Laroia and acquired by Qualcomm for $1B in 2008.


Dr. Calderbank is an IEEE Fellow and an AT&T Fellow, and he was elected to the National Academy of Engineering in 2005. He received the 2013 IEEE Hamming Medal for contributions to coding theory and communications and the 2015 Shannon Award.


Contact Info:
Office Location:  317 Gross Hall
Office Phone:  (919) 613-7874
Email Address: send me a message

Teaching (Fall 2017):

  • ECE 483.01, INTRO TO DIG COMM SYS Synopsis
    Hudson 218, TuTh 03:05 PM-04:20 PM
  • ECE 590.09, ADVANCED TOPICS IN ECE Synopsis
    Gross Hall 324, WF 10:05 AM-11:20 AM
    (also cross-listed as MATH 590-02.01)

Ph.D.California Institute of Technology1980
M.S.Oxford University (U.K.)1976
B.S.University of Warwick (England)1975

Machine learning • Mental Health • Oblique projection • Phase Transition

Recent Publications   (More Publications)

  1. Bajwa, WU; Duarte, MF; Calderbank, R, Conditioning of Random Block Subdictionaries With Applications to Block-Sparse Recovery and Regression, IEEE Transactions on Information Theory, vol. 61 no. 7 (July, 2015), pp. 4060-4079, ISSN 0018-9448 [doi]
  2. Harms, A; Bajwa, WU; Calderbank, R, Identification of Linear Time-Varying Systems Through Waveform Diversity, IEEE Transactions on Signal Processing, vol. 63 no. 8 (April, 2015), pp. 2070-2084, ISSN 1053-587X [doi]
  3. Nokleby, M; Rodrigues, M; Calderbank, R, Discrimination on the Grassmann Manifold: Fundamental Limits of Subspace Classifiers, IEEE Transactions on Information Theory, vol. 61 no. 4 (April, 2015), pp. 2133-2147, ISSN 0018-9448 [doi]
  4. Harms, A; Bajwa, W; Calderbank, R, Efficient linear time-varying system identification using chirp waveforms, Conference Record of the Asilomar Conference on Signals, Systems and Computers, vol. 2015-April (January, 2015), pp. 854-858, ISSN 1058-6393, ISBN 9781479982974 [doi]  [abs]
  5. Wang, L; Huang, J; Yuan, X; Krishnamurthy, K; Greenberg, J; Cevher, V; Rodrigues, MRD; Brady, D; Calderbank, R; Carin, L, Signal Recovery and System Calibration from Multiple Compressive Poisson Measurements, SIAM Journal on Imaging Sciences, vol. 8 no. 3 (January, 2015), pp. 1923-1954 [doi]
Recent Grant Support

  • Oak Ridge National Lab GO Program, Oak Ridge National Laboratory, 2014/10-2019/09.      
  • Improving Melanoma Diagnosis with Pump-Probe Optical Imaging, National Institutes of Health, 1R01-CA166555-01A1& rev, 2013/01-2017/12.      
  • ORNL/Duke Collaboration and Program Development, Oak Ridge National Labs, 2011/11-2017/09.      
  • SHF:Small:Using Coding Theory to Optimize the Representation of Information in Computer Architecture, National Science Foundation, CCF-1421177, 2014/08-2017/07.      
  • Wide-Area Persistent Energy-Efficient Maritime Sensing, Office of Naval Research, 2013/01-2016/09.      
  • Discovery of Empirical Components by Information Theory, Random Matrix Theory, and Computational Topology, Princeton University, 00002113, 2013/02-2016/02.      
  • X-Ray Scatter and Phase Imaging for Explosive Detection, US Department of Homeland Security, HSHQDC-11-C-00083, 2011/09-2015/09. 
ph: 919.660.2800
fax: 919.660.2821

Mathematics Department
Duke University, Box 90320
Durham, NC 27708-0320