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 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
   
   
2. 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
   
   
3. Rapid State-Reduction of Quantum Systems Using Feedback Control
   J. Combes and K. Jacobs,
   Phys. Rev. Lett. 96, 010504 (2006)
   quant-ph/0508007
    
4. A Bound on the Mutual Information, and properties of Entropy Reduction
   for Quantum Channels with Inefficient Measurements
   K. Jacobs,
   J. Math. Phys (in press)
   quant-ph/0412006
    
5. Simple formula for pooling knowledge about a quantum system
   K. Jacobs,
   Phys. Rev. A 72 , 044101(BR) (2005)
   quant-ph/0503193
    
6. 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
    
7. 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
    
8. Efficient Measurements, Purification, and Bounds on the Mutual Information
   K. Jacobs:
   Phys. Rev. A 68 , 054302(BR) (2003)
   quant_ph/0306039
    
9. How to Project Qubits Faster Using Quantum Feedback
   K. Jacobs:
   Phys. Rev. A 67 , 030301(R) (2003)
   quant_ph/0301056
    
10. How Do Two Observers Pool Their Knowledge About a Quantum System?
    K. Jacobs:
    Quantum Information Processing 1 , 73 (2002)
    quant_ph/0201096
     
11. Information, disturbance and Hamiltonian quantum feedback control
    A. Doherty, K. Jacobs and G. Jungman,
    Phys. Rev. A 63 , 062306 (2001):
    quant_ph/0006013
     
12. Information-tradeoff relations for finite-strength quantum measurements
    C. Fuchs and K. Jacobs,
    Phys. Rev. A 63 , 062305 (2001):
    quant_ph/0009101
     
13. 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
     
14. 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