John R Jeffers

Department of Physics,
University of Strathclyde,
107 Rottenrow, Glasgow, G4 0NG, Scotland, U.K.
Telephone: +44 141 548 3213
Fax: +44 141 552 2891
e-mail: john-at-phys.strath.ac.uk *

* Please replace -at- with @. This is present for spam prevention.

Research Interests
Quantum theory, preparation and measurement, quantum information, matter waves, quantum images, quantum and classical optics.
Career  
From 2001 Lecturer, University of Strathclyde
1992-2001 Research Assistant, University of Strathclyde
1993 Ph.D. Theoretical Physics, University of Essex
1987 B.Sc. (Hons) Physics, University of Newcastle upon Tyne
Selected Recent Publications
2004
• O. Jedrkiewicz, R. Loudon and J. Jeffers
Retrodiction for optical attenuators, amplifiers, and detectors
Phys. Rev. A 70, 033805 (2004)
also in Virtual Journal of Quantum Information
• Whitlock NK; Barnett SM; Jeffers J
On the mechanical properties of matter waves
J. Phys. B, Vol 37, Iss 14, pp L293-L296 (2004)
• Tan EK; Jeffers J; Barnett SM
Field-state measurement in a micromaser using retrodictive quantum
theory
Phys. Rev. A, Vol 69, Iss 4, art. no. 043806 (2004)

2003
• Tan EK; Jeffers J; Barnett SM
State vector approximations for the resonant two-photon Jaynes-Cummings
model
J. Mod. Opt., Vol 50, Iss 13, pp 2057-2065 (2003)
• Whitlock NK; Barnett SM; Jeffers J
Semiclassical theory of matter-wave detection
J. Phys. B, Vol 36, Iss 6, pp 1273-1278 (2003)
• Loudon R; Jedrkiewicz O; Barnett SM; Jeffers J
Quantum limits on noise in dual input-output linear optical amplifiers
and attenuators
Phys. Rev. A, Vol 67, Iss 3, art. no. 033803 (2003)
• Tan EK; Jeffers J; Barnett SM; Pegg DT
Retrodictive states and two-photon quantum imaging
Eur. Phys. J. D, Vol 22, Iss 3, pp 495-499 (2003)

2002
• Pegg DT; Barnett SM; Jeffers J
Quantum retrodiction in open systems
Phys. Rev. A, Vol 66, Iss 2, art. no. 022106 (2002)
• Jeffers J; Barnett SM; Pegg DT
Retrodiction with two-level atoms: atomic previvals
J. Mod. Opt., Vol 49, Iss 7, pp 1175-1184 (2002)
• Pegg DT; Barnett SM; Jeffers J
Quantum theory of preparation and measurement
J. Mod. Opt., Vol 49, Iss 5-6, pp 913-924 (2002)
• Jeffers J; Barnett SM; Pegg DT
Retrodiction as a tool for micromaser field measurements
J. Mod. Opt., Vol 49, Iss 5-6, pp 925-938 (2002)

2001
• Barnett SM; Pegg DT; Jeffers J; Jedrkiewicz O
Master equation for retrodiction of quantum communication signals
Phys. Rev. Lett., Vol 86, Iss 11, pp 2455-2458 (2001)

 
Major Grants and Research Collaborations
• Retrodiction as a tool for quantum information (60k EPSRC, May 2001-Dec 2004)
• Quantum Trajectories and Generalised Measurements (9k EPSRC, Sep 2002-Mar 2003)
• Quantum State Comparison (13k EPSRC, Jan 2001-Apr 2001)
 
Courses
12.146 The Universe and Everything
1st Year Laboratory
12.321 Quantum Physics
12.483 Quantum and Nonlinear Optics

Other Information
Dr. Jeffers is the Physics Department Postgraduate Tutor, and is on the SUPA Graduate School Management Committee