• RAPID COMMUNICATIONS
  • Fundamental concepts
  • Atomic and molecular structure and dynamics
  • Atomic and molecular collisions and interactions
  • Atomic and molecular processes in external fields
  • Matter waves
  • Quantum optics, physics of lasers, nonlinear optics
• ARTICLES
  • Fundamental concepts
  • Quantum information
  • Atomic and molecular structure and dynamics
  • Atomic and molecular collisions and interactions
  • Photon, electron, atom, and molecule interactions with solids and surfaces
  • Clusters (including fullerenes)
  • Atomic and molecular processes in external fields
  • Matter waves
  • Quantum optics, physics of lasers, nonlinear optics
• BRIEF REPORTS
  • Fundamental concepts
  • Atomic and molecular structure and dynamics
  • Atomic and molecular collisions and interactions
  • Photon, electron, atom, and molecule interactions with solids and surfaces
  • Atomic and molecular processes in external fields
  • Matter waves
  • Quantum optics, physics of lasers, nonlinear optics
• COMMENTS
• ERRATA

RAPID COMMUNICATIONS

Fundamental concepts

Deterministic Bell states and measurement of the motional state of two trapped ions E. Solano, R. L. de Matos Filho, and N. Zagury pp. R2539-R2543 [View PDF (336 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular structure and dynamics

Large nondipole correlation effects near atomic photoionization thresholds M. Ya Amusia, A. S. Baltenkov, Z. Felfli, and A. Z. Msezane pp. R2544-R2547 [View PDF (108 kB) or Buy this Article (Use Article Pack) ]

Semiclassical calculation of transition matrix elements for atoms in external fields Jörg Main and Günter Wunner pp. R2548-R2551 [View PDF (132 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular collisions and interactions

Electron-impact excitation from the (3p54s) metastable states of argon K. Bartschat and V. Zeman pp. R2552-R2554 [View PDF (90 kB) or Buy this Article (Use Article Pack) ]

Strong temperature dependence of laser-enhanced charge transfer in collisions of sodium clusters with sodium atoms Z. Roller-Lutz, Y. Wang, H. O. Lutz, U. Saalmann, and R. Schmidt pp. R2555-R2558 [View PDF (144 kB) or Buy this Article (Use Article Pack) ]

Calculation of the He- 1s2s2 2S resonance using fully correlated Hylleraas functions Y. K. Ho and Zong-Chao Yan pp. R2559-R2562 [View PDF (97 kB) or Buy this Article (Use Article Pack) ]

Ionization through the Auger decay of doubly excited 4d95p5nln′l′ states in Xe H. Aksela, S. Alitalo, J. Jauhiainen, A. Kivimäki, T. Matila, T. Kylli, E. Nõmmiste, and S. Aksela pp. R2563-R2566 [View PDF (100 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular processes in external fields

Geometry modifications and alignment of H2O in an intense femtosecond laser pulse J. H. Sanderson, A. El-Zein, W. A. Bryan, W. R. Newell, A. J. Langley, and P. F. Taday pp. R2567-R2570 [View PDF (550 kB) or Buy this Article (Use Article Pack) ]

Matter waves

Measurement scheme for relative phase diffusion between two Bose-Einstein condensates J. Ruostekoski and D. F. Walls pp. R2571-R2574 [View PDF (114 kB) or Buy this Article (Use Article Pack) ]

Quantum optics, physics of lasers, nonlinear optics

Space-time localized structures in the degenerate optical parametric oscillator M. Tlidi and Paul Mandel pp. R2575-R2578 [View PDF (263 kB) or Buy this Article (Use Article Pack) ]

Complete quenching of fluorescence from a two-level atom driven by a weak, narrow-band, nonclassical light field W. S. Smyth and S. Swain pp. R2579-R2582 [View PDF (136 kB) or Buy this Article (Use Article Pack) ]

Efficient phase conjugation via two-photon coherence in an optically dense crystal B. S. Ham, P. R. Hemmer, and M. S. Shahriar pp. R2583-R2586 [View PDF (95 kB) or Buy this Article (Use Article Pack) ]

Preventing laser beam filamentation through use of the squeezed vacuum Robert W. Boyd and G. S. Agarwal pp. R2587-R2589 [View PDF (105 kB) or Buy this Article (Use Article Pack) ]

ARTICLES

Fundamental concepts

•	Critique of protective measurements N. D. Hari Dass and Tabish Qureshi pp. 2590-2601 [View PDF (232 kB) or Buy this Article (Use Article Pack) ]

•	Universal geometric approach to uncertainty, entropy, and information Michael J. Hall pp. 2602-2615 [View PDF (249 kB) or Buy this Article (Use Article Pack) ]

•	Exact quantum states of a general time-dependent quadratic system from classical action Dae-Yup Song pp. 2616-2623 [View PDF (180 kB) or Buy this Article (Use Article Pack) ]

•	Validity of Feynman’s prescription of disregarding the Pauli principle in intermediate states F. A. Coutinho, Y. Nogami, and Lauro Tomio pp. 2624-2630 [View PDF (147 kB) or Buy this Article (Use Article Pack) ]

Quantum information

•	Macroscopically distinct quantum-superposition states as a bosonic code for amplitude damping P. T. Cochrane, G. J. Milburn, and W. J. Munro pp. 2631-2634 [View PDF (90 kB) or Buy this Article (Use Article Pack) ]

•	Quantum communication using a nonlocal Zeno effect Lucien Hardy and Wim van Dam pp. 2635-2640 [View PDF (133 kB) or Buy this Article (Use Article Pack) ]

•	Lower bounds for attainable fidelities in entanglement purification G. Giedke, H. J. Briegel, J. I. Cirac, and P. Zoller pp. 2641-2648 [View PDF (188 kB) or Buy this Article (Use Article Pack) ]

•	Realizing the quantum baker’s map on a NMR quantum computer Todd A. Brun and Rüdiger Schack pp. 2649-2658 [View PDF (212 kB) or Buy this Article (Use Article Pack) ]

•	Quantum communication with dark photons S. J. van Enk, H. J. Kimble, J. I. Cirac, and P. Zoller pp. 2659-2664 [View PDF (125 kB) or Buy this Article (Use Article Pack) ]

•	Eavesdropping optimization for quantum cryptography using a positive operator-valued measure Howard E. Brandt pp. 2665-2669 [View PDF (92 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular structure and dynamics

•	Kinetic-energy systems, density scaling, and homogeneity relations in density-functional theory Garnet Kin-Lic Chan and Nicholas C. Handy pp. 2670-2679 [View PDF (212 kB) or Buy this Article (Use Article Pack) ]

•	Nonadiabatic coupling using a corrected Born-Oppenheimer basis: The vibronic spectrum of HD+ Inbal Tuvi and Y. B. Band pp. 2680-2683 [View PDF (122 kB) or Buy this Article (Use Article Pack) ]

•	Perturbative approach in the WKB analysis: Application to the Stark effect S. H. Patil pp. 2684-2690 [View PDF (153 kB) or Buy this Article (Use Article Pack) ]

•	4S resonances of He- below the He+(n=1) threshold N. Brandefelt and E. Lindroth pp. 2691-2696 [View PDF (167 kB) or Buy this Article (Use Article Pack) ]

•	Ground state and S-wave autodissociating resonant states of positronium hydride Zong-Chao Yan and Y. K. Ho pp. 2697-2701 [View PDF (98 kB) or Buy this Article (Use Article Pack) ]

•	Long-lived high-spin states of small anions: 6Π state of CO- A. Dreuw and L. S. Cederbaum pp. 2702-2706 [View PDF (99 kB) or Buy this Article (Use Article Pack) ]

•	Calculated self-energy contributions for an ns valence electron using the multiple-commutator method Leonti Labzowsky, Igor Goidenko, Maria Tokman, and Pekka Pyykkö pp. 2707-2711 [View PDF (125 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular collisions and interactions

•	Nonadiabatic polarization potentials in electron- and positron-molecule scattering: Application to e-+H2 Ahmed Bouferguene, Ignacio Ema, and Charles A. Weatherford pp. 2712-2718 [View PDF (171 kB) or Buy this Article (Use Article Pack) ]

•	Nonlinear calculation of stopping powers for protons and antiprotons in solids: The Barkas effect N. R. Arista and A. F. Lifschitz pp. 2719-2722 [View PDF (102 kB) or Buy this Article (Use Article Pack) ]

•	Angular dependence of L x-ray production cross sections in uranium at 22.6- and 59.5-keV photon energies D. Mehta, Sanjiv Puri, Nirmal Singh, M. L. Garg, and P. N. Trehan pp. 2723-2731 [View PDF (192 kB) or Buy this Article (Use Article Pack) ]

•	X-ray emission by ultrafast inner-shell ionization from vapors of Na, Mg, and Al Kengo Moribayashi, Akira Sasaki, and T. Tajima pp. 2732-2737 [View PDF (133 kB) or Buy this Article (Use Article Pack) ]

•	Group-theoretical approach to final-state angular correlations in double photoionization of helium Yanghui Qiu and Joachim Burgdörfer pp. 2738-2743 [View PDF (152 kB) or Buy this Article (Use Article Pack) ]

•	Autoionization distribution of atomic high doubly excited states: A “breathing spheres” approach W. Huang, U. Eichmann, and W. Sandner pp. 2744-2748 [View PDF (99 kB) or Buy this Article (Use Article Pack) ]

•	Measurement of electron-impact excitation cross sections out of metastable levels of argon and comparison with ground-state excitation John B. Boffard, Garrett A. Piech, Mark F. Gehrke, L. W. Anderson, and Chun C. Lin pp. 2749-2763 [View PDF (264 kB) or Buy this Article (Use Article Pack) ]

•	(e,2e) study of cadmium ionization in the 4d95s25p autoionizing region N. L. Martin, R. P. Bauman, and M. Wilson pp. 2764-2772 [View PDF (227 kB) or Buy this Article (Use Article Pack) ]

•	Differential electron-Cu5+ elastic scattering cross sections extracted from electron emission in ion-atom collisions C. Liao, S. Hagmann, C. P. Bhalla, S. R. Grabbe, C. L. Cocke, and P. Richard pp. 2773-2777 [View PDF (129 kB) or Buy this Article (Use Article Pack) ]

•	Repulsive 1/r3 interaction Bo Gao pp. 2778-2786 [View PDF (183 kB) or Buy this Article (Use Article Pack) ]

•	Dielectronic recombination of Ne-like tungsten E. Behar, P. Mandelbaum, and J. L. Schwob pp. 2787-2793 [View PDF (157 kB) or Buy this Article (Use Article Pack) ]

•	Nonperturbative theory of projectile-electron loss in fast collisions with heavy atomic targets A. B. Voitkiv, G. M. Sigaud, and E. C. Montenegro pp. 2794-2803 [View PDF (213 kB) or Buy this Article (Use Article Pack) ]

•	Dissociative recombination of He2+ molecular ions L. Carata, A. E. Orel, and A. Suzor-Weiner pp. 2804-2812 [View PDF (302 kB) or Buy this Article (Use Article Pack) ]

Photon, electron, atom, and molecule interactions with solids and surfaces

•	Charge states and energy loss of 300-MeV/u U73+ ions channeled in a silicon crystal D. Dauvergne et al. pp. 2813-2826 [View PDF (285 kB) or Buy this Article (Use Article Pack) ]

Clusters (including fullerenes)

•	Fragmentation scheme of C604+ ions produced in low-energy collisions of Ar8+ and C60 L. Chen, J. Bernard, A. Denis, S. Martin, and J. Désesquelles pp. 2827-2835 [View PDF (523 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular processes in external fields

•	Coulomb explosion of N2 and CO2 using linearly and circularly polarized femtosecond laser pulses Ph. Hering and C. Cornaggia pp. 2836-2843 [View PDF (213 kB) or Buy this Article (Use Article Pack) ]

•	Adiabatic theory of electron detachment from negative ions in a two-color laser field M. Yu. Kuchiev and V. N. Ostrovsky pp. 2844-2851 [View PDF (160 kB) or Buy this Article (Use Article Pack) ]

•	Complete population transfer between nonresonant tunneling states induced by a train of laser pulses N. Tsukada, Y. Nomura, and T. Isu pp. 2852-2857 [View PDF (177 kB) or Buy this Article (Use Article Pack) ]

•	Multiphoton ionization of dissociating D2+ molecules C. Trump, H. Rottke, and W. Sandner pp. 2858-2863 [View PDF (149 kB) or Buy this Article (Use Article Pack) ]

•	Multiphoton detachment of H- near the one-photon threshold: Exterior complex-scaling–generalized pseudospectral method for complex quasienergy resonances Dmitry A. Telnov and Shih-I Chu pp. 2864-2874 [View PDF (209 kB) or Buy this Article (Use Article Pack) ]

•	Spectrum of neutral helium in strong magnetic fields Matthew D. Jones, Gerardo Ortiz, and David M. Ceperley pp. 2875-2885 [View PDF (209 kB) or Buy this Article (Use Article Pack) ]

•	Changes in Floquet-state structure at avoided crossings: Delocalization and harmonic generation T. Timberlake and L. E. Reichl pp. 2886-2893 [View PDF (303 kB) or Buy this Article (Use Article Pack) ]

•	Polarization effects in high-harmonic generation in the presence of static-electric field Bingbing Wang, Xiaofeng Li, and Panming Fu pp. 2894-2902 [View PDF (196 kB) or Buy this Article (Use Article Pack) ]

•	Characteristics of correlation satellites below 25 eV in xenon probed by pulsed-field-ionization–zero-kinetic-energy photoelectron spectroscopy R. C. Shiell, M. Evans, S. Stimson, C.-W. Hsu, C. Y. Ng, and J. W. Hepburn pp. 2903-2909 [View PDF (113 kB) or Buy this Article (Use Article Pack) ]

•	Laser-driven population transfer in four-level atoms: Consequences of non-Abelian geometrical adiabatic phase factors R. G. Unanyan, B. W. Shore, and K. Bergmann pp. 2910-2919 [View PDF (185 kB) or Buy this Article (Use Article Pack) ]

•	Quantum-state engineering of a trapped ion by coherent-state superpositions H. Moya-Cessa, S. Wallentowitz, and W. Vogel pp. 2920-2925 [View PDF (127 kB) or Buy this Article (Use Article Pack) ]

•	Photoionization suppression by continuum coherence: Experiment and theory L. P. Yatsenko, T. Halfmann, B. W. Shore, and K. Bergmann pp. 2926-2947 [View PDF (465 kB) or Buy this Article (Use Article Pack) ]

•	Bifurcations of closed orbits in singlet helium Stark spectra Annemieke Kips, Wim Vassen, and Wim Hogervorst pp. 2948-2955 [View PDF (350 kB) or Buy this Article (Use Article Pack) ]

Matter waves

•	Precision Monte Carlo test of the Hartree-Fock approximation for a trapped Bose gas Markus Holzmann, Werner Krauth, and Martin Naraschewski pp. 2956-2961 [View PDF (137 kB) or Buy this Article (Use Article Pack) ]

•	Markov approximation for the atomic output coupler M. W. Jack, M. Naraschewski, M. J. Collett, and D. F. Walls pp. 2962-2973 [View PDF (228 kB) or Buy this Article (Use Article Pack) ]

•	Component separation in harmonically trapped boson-fermion mixtures Nicolai Nygaard and Klaus Mølmer pp. 2974-2981 [View PDF (728 kB) or Buy this Article (Use Article Pack) ]

•	Photonic band gaps and defect states induced by excitations of Bose-Einstein condensates in optical lattices Karl-Peter Marzlin and Weiping Zhang pp. 2982-2989 [View PDF (179 kB) or Buy this Article (Use Article Pack) ]

•	Bosons in a toroidal trap: Ground state and vortices L. Salasnich, A. Parola, and L. Reatto pp. 2990-2995 [View PDF (127 kB) or Buy this Article (Use Article Pack) ]

Quantum optics, physics of lasers, nonlinear optics

•	Strong interaction between a two-level atom and the whispering-gallery modes of a dielectric microsphere: Quantum-mechanical consideration V. V. Klimov, M. Ducloy, and V. S. Letokhov pp. 2996-3014 [View PDF (998 kB) or Buy this Article (Use Article Pack) ]

•	Cavity-induced coherence effects in spontaneous emissions from preselection of polarization Anil K. Patnaik and G. S. Agarwal pp. 3015-3020 [View PDF (167 kB) or Buy this Article (Use Article Pack) ]

•	Low-frequency fluctuations in vertical-cavity surface-emitting semiconductor lasers with optical feedback C. Masoller and N. B. Abraham pp. 3021-3031 [View PDF (277 kB) or Buy this Article (Use Article Pack) ]

•	Dynamics of the quantized radiation field in a cavity vibrating at the fundamental frequency Ying Wu, M.-C. Chu, and P. T. Leung pp. 3032-3037 [View PDF (141 kB) or Buy this Article (Use Article Pack) ]

•	Giant pulse lasing in three-level systems J. Mompart, R. Corbalán, and R. Vilaseca pp. 3038-3043 [View PDF (165 kB) or Buy this Article (Use Article Pack) ]

•	Reconstruction of an entangled state in cavity QED M. S. Kim and G. S. Agarwal pp. 3044-3048 [View PDF (117 kB) or Buy this Article (Use Article Pack) ]

•	Creation of photons in an oscillating cavity with two moving mirrors Diego A. Dalvit and Francisco D. Mazzitelli pp. 3049-3059 [View PDF (223 kB) or Buy this Article (Use Article Pack) ]

•	Resonant Raman amplification of ultrashort pulses in a V-type medium V. V. Kozlov, P. G. Polynkin, and M. O. Scully pp. 3060-3070 [View PDF (228 kB) or Buy this Article (Use Article Pack) ]

BRIEF REPORTS

Fundamental concepts

•	Mesoscopic superpositions of states: Approach to classicality and diagonalization in a coherent state basis G. S. Agarwal pp. 3071-3074 [View PDF (345 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular structure and dynamics

•	Optimized Lieb-Oxford bound for the exchange-correlation energy Garnet Kin-Lic Chan and Nicholas C. Handy pp. 3075-3077 [View PDF (113 kB) or Buy this Article (Use Article Pack) ]

•	Multielectron photoexcitations in x-ray-absorption spectra of 4p elements J. Padežnik Gomilšek, A. Kodre, I. Arčon, A. M. Loireau-Lozac’h, and S. Bénazeth pp. 3078-3081 [View PDF (75 kB) or Buy this Article (Use Article Pack) ]

•	Enhancement factor for the electron electric dipole moment in francium and gold atoms T. M. Byrnes, V. A. Dzuba, V. V. Flambaum, and D. W. Murray pp. 3082-3083 [View PDF (63 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular collisions and interactions

•	Theoretical and experimental study of He free-jet expansions L. Pedemonte, G. Bracco, and R. Tatarek pp. 3084-3087 [View PDF (119 kB) or Buy this Article (Use Article Pack) ]

•	Rayleigh and Raman scattering from helium for wavelengths down to 16 nm Thomas Grosges, Bernard Piraux, and Robin Shakeshaft pp. 3088-3091 [View PDF (129 kB) or Buy this Article (Use Article Pack) ]

•	Experimental search for interference effects in the total e-+Sc3+ recombination rate S. Schippers, T. Bartsch, C. Brandau, A. Müller, J. Linkemann, A. A. Saghiri, and A. Wolf pp. 3092-3094 [View PDF (101 kB) or Buy this Article (Use Article Pack) ]

Photon, electron, atom, and molecule interactions with solids and surfaces

•	Secondary-electron emission from nonmetallic (perovskite) surfaces under slow proton impact: Absence of apparent threshold H. Tawara, K. Hosaka, and N. Matsunami pp. 3095-3097 [View PDF (64 kB) or Buy this Article (Use Article Pack) ]

Atomic and molecular processes in external fields

•	Stability of polygonal Coulomb crystals Sh. Amiranashvili, N. Gusein-zade, and A. Ignatov pp. 3098-3100 [View PDF (103 kB) or Buy this Article (Use Article Pack) ]

•	Observation of periodic structures of atoms in a two-color magneto-optical trap D. M. Milori, M. A. Martinez, A. M. Tuboy, L. G. Marcassa, J. Flemming, R. Ejnisman, S. C. Zilio, and V. S. Bagnato pp. 3101-3104 [View PDF (493 kB) or Buy this Article (Use Article Pack) ]

•	Perturbation of water by intense light-induced fields of picosecond duration and ion-induced fields of attosecond duration V. R. Bhardwaj, F. A. Rajgara, K. Vijayalakshmi, V. Kumarappan, D. Mathur, and A. K. Sinha pp. 3105-3108 [View PDF (89 kB) or Buy this Article (Use Article Pack) ]

Matter waves

•	Density of states of particles in a generic power-law potential in any dimensional space Mingzhe Li, Lixuan Chen, and Chuanhong Chen pp. 3109-3111 [View PDF (77 kB) or Buy this Article (Use Article Pack) ]

•	Center-of-mass response of confined systems L. F. Lemmens, F. Brosens, and J. T. Devreese pp. 3112-3115 [View PDF (111 kB) or Buy this Article (Use Article Pack) ]

Quantum optics, physics of lasers, nonlinear optics

•	Nonlinear optical generation in a hydrogen discharge D. W. Tokaryk, G. Z. Zhang, and B. P. Stoicheff pp. 3116-3119 [View PDF (84 kB) or Buy this Article (Use Article Pack) ]

•	Second-harmonic generation in a plane nonlinear optical antiwaveguide Boris V. Gisin pp. 3120-3123 [View PDF (98 kB) or Buy this Article (Use Article Pack) ]

COMMENTS

•	Comment on “Harmonic oscillator with time-dependent mass and frequency and a perturbative potential” M. Maamache, K. Bencheikh, and H. Hachemi pp. 3124-3126 [View PDF (84 kB) or Buy this Article (Use Article Pack) ]

•	Comment on “Induced transitions and energy of a damped oscillator” George J. Papadopoulos and Ioannis A. Hadjiagapiou pp. 3127-3128 [View PDF (70 kB) or Buy this Article (Use Article Pack) ]

•	Impossibility of distinguishing between identical particles in quantum collision processes Gy. Bencze and Colston Chandler pp. 3129-3132 [View PDF (91 kB) or Buy this Article (Use Article Pack) ]

•	Reply to “Possibility of distinguishing between identical particles in quantum collision processes” Igor Bray pp. 3133-3135 [View PDF (79 kB) or Buy this Article (Use Article Pack) ]

•	Comment on “Single two-level ion in an anharmonic oscillator trap: Time evolution of the Q function and population inversion” C. F. Lo and K. L. Liu pp. 3136-3137 [View PDF (70 kB) or Buy this Article (Use Article Pack) ]

•	Reply to “Comment on ‘Single two-level ion in an anharmonic oscillator trap: Time evolution of the Q function and population inversion’ ” S. Shelly Sharma, N. K. Sharma, and Larry Zamick pp. 3138-3140 [View PDF (85 kB) or Buy this Article (Use Article Pack) ]

ERRATA

•	Erratum: Second-order squeezed states [Phys. Rev. A 55, 3051 (1997)] Paulina Marian pp. 3141 [View PDF (34 kB) ]

•	Erratum: Analysis of multiphoton ionization of metal atoms in the saturation regime using subpicosecond KrF laser pulses [Phys. Rev. A 58, 3836 (1998)] B. Witzel, C. J. Uiterwaal, H. Schröder, D. Charalambidis, and K.-L. Kompa pp. 3141 [View PDF (26 kB) ]