Quantum information theory, which was initiated in the early seventies by Alexander Holevo and others, has become a sizeable research field, due to the startling discoveries of quantum teleportation by Bill Wootters and his collaborators in 1993, a fast quantum algorithm for finding large prime factors in the same year by Peter Shor, and many subsequent fundamental results. Quantum information theory is concerned with the properties of quantum systems relating to the transmission and manipulation of information.

Eprints and Publications:

1. Quantum measurement and the first law of thermodynamics: the energy cost of measurement
   is the work value of the acquired information
   K. Jacobs
   Phys. Rev. E 86, 040106(R) (2012)
   arXiv:1208.1561
   
   
2. An exactly solvable model for the integrability–chaos transition in rough quantum billiards
   M. Olshanii, K. Jacobs, M. Rigol, V. Dunjko, H. Kennard, V. Yurovsky
   Nat. Commun. 3:641 doi: 10.1038/ncomms1653 (2012)
   arXiv:1203.1972
   
   
3. The approach to typicality in many-body quantum systems
   S. Dubey, L. Silvestri, J. Finn, S. Vinjanampathy, and K. Jacobs
   Phys. Rev. E 85, 011141 (2012)
   arXiv:1112.3424
   
   
4. Second law of thermodynamics and quantum feedback control: Maxwell's demon with weak measurements  
   K. Jacobs
   Phys. Rev. A 80, 012322 (2009)
   arXiv:0906.4146
   
   
5. A Monte Carlo method for modeling thermal damping: Beyond the Brownian motion master equation 
   K. Jacobs
   EPL 85, 40002 (2009)
   arXiv:0807.4211
   
   
6. Tradeoff between extractable mechanical work, accessible entanglement, and ability to act as a reference system,
   under arbitrary superselection rules
   J. A. Vaccaro, F. Anselmi, H. M. Wiseman, and K. Jacobs
   Phys. Rev. A 77, 032114 (2008)
   quant-ph/0501121
   
   
7. Quantum communication via a continuously monitored dual spin chain
   K. Shizume, K. Jacobs, D. Burgarth, and S. Bose
   Phys. Rev. A 75, 062328 (2007)
   quant-ph/0702029
   
   
8. Rapid state-purification protocols for a Cooper-pair box
   E. J. Griffith, C. D. Hill, J. F. Ralph, H. M. Wiseman, and K. Jacobs,
   Phys. Rev. B 75, 014511 (2007)
   quant-ph/0610044
   
   
9. Rapid State-Reduction of Quantum Systems Using Feedback Control
   J. Combes and K. Jacobs,
   Phys. Rev. Lett. 96, 010504 (2006)
   quant-ph/0508007
    
10. A Bound on the Mutual Information, and properties of Entropy Reduction for Quantum Channels
    with Inefficient Measurements
    K. Jacobs,
    J. Math. Phys. 47, 012102 (2006)
    quant-ph/0412006
     
11. Simple formula for pooling knowledge about a quantum system
    K. Jacobs,
    Phys. Rev. A 72, 044101(BR) (2005)
    quant-ph/0503193
     
12. Quantum error correction for continuously detected errors
    with any number of error channels per qubit
    C. Ahn, H.M. Wiseman, and K. Jacobs,
    Phys. Rev. A 70, 024302(BR) (2004)
    quant-ph/0402067
     
13. A practical scheme for error control using feedback
    M. Sarovar, C. Ahn, K. Jacobs and G.J. Milburn,
    Phys. Rev. A 69, 052324 (2004)
    quant-ph/0402017
     
14. Efficient Measurements, Purification, and Bounds on the Mutual Information
    K. Jacobs:
    Phys. Rev. A 68, 054302(BR) (2003)
    quant_ph/0306039
     
15. How to Project Qubits Faster Using Quantum Feedback
    K. Jacobs:
    Phys. Rev. A 67, 030301(R) (2003)
    quant_ph/0301056
     
16. How Do Two Observers Pool Their Knowledge About a Quantum System?
    K. Jacobs:
    Quantum Information Processing 1, 73 (2002)
    quant_ph/0201096
     
17. Information, disturbance and Hamiltonian quantum feedback control
    A. Doherty, K. Jacobs, and G. Jungman,
    Phys. Rev. A 63, 062306 (2001)
    quant_ph/0006013
     
18. Information-tradeoff relations for finite-strength quantum measurements
    C. Fuchs and K. Jacobs,
    Phys. Rev. A 63, 062305 (2001)
    quant_ph/0009101
     
19. Optimal local implementation of non-local quantum gates
    J. Eisert, K. Jacobs, P. Papadopoulos, and M.B. Plenio,
    Phys. Rev. A 62, 052317 (2000)
    quant_ph/0005101
     
20. Statistical inference, destingiushability of quantum states, and quantum entanglement
    V. Vedral, M. B. Plenio, K. Jacobs, and P.L. Knight,
    Phys Rev. A 56, 4452 (1997)
    quant_ph/9703025