************************************ * QUANTUM OPTICS AND ATOM OPTICS * * IN AUSTRALASIA * * * * * * * * MONTHLY NEWSLETTER * * VOL VII, NO 7 * * * * July 1999 * * * * ISSN 1325-6467 * * * Edited by: Bill Munro * \ | / * Physics, University of Queensland, * \__|__/ * QLD 4072, Australia. * | * email: billm@physics.uq.edu.au * | * phone: +61 7 3365 2422 * | * fax: +61 7 3365 1242 Available on WWW at: http://www.physics.uq.edu.au/people/billm/qo.html ---------------------------------------------------------------------- -------- CONTENTS 0. PROBLEMS 1. ABSTRACTS 2. CONFERENCE ANNOUNCEMENTS 3. WANTED TO BUY/SELL 4. SITUATIONS VACANT 5. MISC NEWS ______________________________________________________________________________ ******************************************************************************* 0. EDITORIAL NOTE Welcome to the july newsletterr. ******************************************************************************* 1. ABSTRACTS TITLE: Multiphoton Coincidence Spectroscopy AUTHORS: L. Horvath, B. C. Sanders and B. F. Wielinga ADDRESS: Department of Physics, Macquarie University Sydney, New South Wales 2109, Australia STATUS: Accepted by Journal of Optics B: Quantum and Semiclassical Optics ABSTRACT: We extend the analysis of photon coincidence spectroscopy beyond bichromatic excitation and two-photon coincidence detection to include multichromatic excitation and multiphoton coincidence detection. Trichromatic excitation and three-photon coincidence spectroscopy are studied in detail, and we identify an observable signature of a triple resonance in an atom-cavity system. _______________________________________________________________________ TITLE: Multi-atom effects in cavity QED with atomic beams AUTHORS: H. J. Carmichael [1] and B. C. Sanders [2] ADDRESSES: [1] University of Oregon, [2] Macquarie University STATUS: Accepted to Physical Review A ABSTRACT: The density dependence of the distribution of collective dipole coupling strengths realized by an atomic beam interacting with a TEM$_{00}$ mode of an optical cavity is analyzed. An analytic expression for the characteristic function is derived, and low and high density limits are taken to define the one-atom and many-atom regimes of cavity QED respectively. Intermediate densities ($\bar N_{\rm eff}\sim0.5$) lie in a few- ($\sim4$-) atom regime. _______________________________________________________________________ TITLE: Multi-atom effects in cavity QED with atomic beams AUTHORS: H. J. Carmichael [1] and B. C. Sanders [2] ADDRESSES: [1] University of Oregon, [2] Macquarie University STATUS: Accepted to Physical Review A ABSTRACT: The density dependence of the distribution of collective dipole coupling strengths realized by an atomic beam interacting with a TEM$_{00}$ mode of an optical cavity is analyzed. An analytic expression for the characteristic function is derived, and low and high density limits are taken to define the one-atom and many-atom regimes of cavity QED respectively. Intermediate densities ($\bar N_{\rm eff}\sim0.5$) lie in a few- ($\sim4$-) atom regime. _______________________________________________________________________ TITLE: Optimal States for Bell inequality Violations using Quadrature Phase Homodyne Measurements AUTHORS: W.J. Munro ADDRESSES: University of Queensland STATUS: Published: Phys. Rev. A. 59 4197, 1999 ABSTRACT: We identify what ideal correlated photon number states are to required to maximize the discrepancy between local realism and quantum mechanics when a quadrature homodyne phase measurement is used. Various Bell inequality tests are considered. ******************************************************************************* 2. CONFERENCES / WORKSHOPS Sixteenth International Conference on Laser Spectroscopy in Australia At the recent International Conference on Laser Spectroscopy held in Innsbruck, the International Steering Committee agreed to a proposal to hold the Sixteenth International Conference on Laser Spectroscopy (ICOLS'03) in Palm Cove, North Queensland in the year 2003. The proposed time at this stage is the week starting 15 July, i.e. the week after the proposed date for CLEO PacRim 2003 in Sydney. Contacts: Peter Hannaford CSIRO Manufacturing Science and Technology hannaford@mst.csiro.au Hans Bachor Australian National University hans@aerodec.anu.edu.au ___________________________________________________ Bose-Einstein Condensation: atomic physics to quantum liquids. The ANU 13th Physics Summer School. January 17-28, 2000 A two week school aimed at PhD students. Contact: Craig Savage, Physics, Faculties, ANU, ACT 0200 http://rsphysse.anu.edu.au/~ss0105/ss2000.html ___________________________________________________ Entanglement and Decoherence (Gargnano, Garda, Lake, Italy) September 20-25 Information about this conference can be found at http://webcesid.fisica.unimi.it/~congressi/ ___________________________________________________ Second Workshop on Fundamental Problems in Quantum Theory (UMBC, Baltimore, Maryland, USA) August 9-13 Information about this conference can be found at http://www.research.umbc.edu/~eholly/quantum/quantum.htm ___________________________________________________ 6th International Wigner Symposium (Istanbul, Turkey) August 16-22 Information about this conference can be found at http://www.wigsym6.boun.edu.tr ****************************************************************************** 4. SITUATIONS VACANT POST-DOCTORAL FELLOWSHIP (Dipartimento di Fisica, Universita` di Salerno) A 2 year position, with a possible extension up to 2 more years is available in the group of Prof. Fabrizio Illuminati, Dipartimento di Fisica, Universita` di Salerno, Baronissi (SA), ITALY. The field of research will be focused on 1) Theory of quantum phenomena in trapped neutral gases (both Bose and Fermi). 2) Dynamics of open quantum systems, techniques and applications, expecially with regard to decoherence in quantum computation and quantum communication systems. 3) Theory of quantum control, controlled quantum evolutions and transitions. Dynamics of quantum-like systems. 4) Entanglement in fundamental quantum systems. Interested applicant can contact Prof. Fabrizio Illuminati Dipartimento di Fisica, Universita` di Salerno, I-84081, Baronissi (SA), ITALY Tel : +39-89-965288 FAX : +39-89-953804 E-mail: fabrizio@leopardi.phys.unisa.it ___________________________________________________ POST-DOCTORAL FELLOWSHIPS FOR NON ITALIAN CITIZENS IN THE FOLLOWING RESEARCH AREAS: THEORETICAL PHYSICS (N. 10) EXPERIMENTAL PHYSICS (N. 20) National Institute for Nuclear Physics I.N.F.N., Italy (Academic) The I.N.F.N. Fellowship Programme 1999-2000 offers thirty positions for non Italian citizens for research activity in theoretical or experimental physics. Fellowships are intended for young post-graduates not more than 35 years of age at the time of deadline. Each fellowship is granted for one year (which may start during the period from September to November 2000), and may be extended for a second year. Candidates should submit an application form and a statement of their research interests and arrange for three letters of reference. Applications must be sent to I.N.F.N. no later than September 30, 1999. Candidates will be informed by the end of January 2000 about the decisions taken by I.N.F.N.'s committee. The successful applicants may carry out their research activity in Italy, at any of the following Laboratories and Sections of I.N.F.N.: National Laboratories of Frascati (Rome), National Laboratories of Legnaro (Padua), National Laboratories of Gran Sasso (L'Aquila) and Southern National Laboratory (Catania). I.N.F.N. Sections in the Universities of: Turin, Milan, Padua, Genoa, Bologna, Pisa, Rome 'La Sapienza', Rome 'Tor Vergata', Naples, Catania, Trieste, Florence, Bari, Pavia, Perugia, Ferrara, Cagliari, Lecce and Rome 'Tre' Information, requests for application forms, and applications should be addressed to Personnel Office - Fellowship Service National Institute of Nuclear Physics (I.N.F.N.) Post Box 56 - 00044 Frascati (Rome) Italy. _________________________________________________________________ POSTDOCTORAL RESEARCH POSITIONS AT THE LUND LASER CENTRE: LASER PHYSICS, LASER-PRODUCED X-RAYS AND HIGH-ORDER HARMONIC GENERATION Lund Institute of Technology, S (Academic) The Lund Laser Centre operates a high-power laser facility with several advanced laser systems, including a multi-terawatt, 100fs 10 Hz laser and a 30fs kHz laser. The applicants are expected to have previous experience with high-power lasers and intense laser - matter interactions. For information contact: Prof. Sune Svanberg: Sune.Svanberg@fysik.lth.se Dr Claes-Goeran Wahlstroem: Claes-Goran@fysik.lth.se Prof. Anne Huillier: Anne.Lhuillier@fysik.lth.se Applications should reach before September 1, 1999 Mrs Lewin Atomic Physics Lund Institute of Technology P.O. Box 118, S-221 00 Lund, Sweden ****************************************************************************** 5. MISC NEWS _______________________________________________________ Bill Munro | Centre for Laser Science, | ,,, Department of Physics | (o o) University of Queensland, | -oOO-(_)-OOo- QLD 4072, Brisbane, Australia | I am Pentium of Borg Phone: +(61 7) 3365 2422 | Divison is Futile Fax: +(61 7) 3365 1242 | You will be approximated Email: billm@physics.uq.edu.au | | WWW: http://www.physics.uq.edu.au/people/billm _______________________________________________________