The Horace Hearne Jr. Institute for Theoretical Physics is at Louisiana State University. The Hearne Institute is funded by a donation of two endowed chairs by Horace Hearne Jr. and the State of Louisiana, as well as additional grants from a variety of national and international granting agencies. It currently has as co-directors Jonathan Dowling and Jorge Pullin. The institute hosts faculty, postdoctoral researchers, students — as well as long- and short-term visitors — who conduct research on quantum technologies and on gravitational physics. The Hearne Institute also sponsors international workshops on quantum information theory, quantum technologies, relativity and quantum gravity.

The institute has made several contributions to physics that have been mentioned in the media and several of the institute member have gathered honors due to professional contributions. (See the Institute News page, below for details.)

External links

Institute News

LSU Today

Physics Today

LSU Board of Regents News Article

International Workshops and Conferences Sponsored by the Hearne Institute

Hearne Institute Inaugural Conference

International Workshop on Linear Optical Quantum Information Processing (LOQuIP)

NSF Workshop on Quantum, Molecular and High Performance Modeling and Simulation for Devices and Systems

Quantum Gravity in the Southern Cone IV

Scientific Journal Publications by the Hearne Institute

Relativity Publications

Quantum Publications

A Selection of Recent Publications:

Wilde, MM; Spedalieri, F; Dowling, JP; et al. Alternate scheme for optical cluster-state generation without number-resolving photon detectors INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 5 (4): 617-626 AUG 2007

Jacobs, K; Lougovski, P Emergent quantum jumps in a nano-electro-mechanical system JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 40 (46): F987-F993 NOV 16 2007

Cable, H; Dowling, JP Efficient generation of large number-path entanglement using only linear optics and feed-forward PHYSICAL REVIEW LETTERS, 99 (16): Art. No. 163604 OCT 19 2007

Dowling, JP Quantum optics - Kittens catch phase NATURE, 450 (7168): 362-363 NOV 15 2007

Lougovski, P; Casagrande, F; Lulli, A; et al. Strongly driven one-atom laser and decoherence monitoring PHYSICAL REVIEW A, 76 (3): Art. No. 033802 SEP 2007

Florescu, M; Lee, H; Puscasu, I; et al. Improving solar cell efficiency using photonic band-gap materials SOLAR ENERGY MATERIALS AND SOLAR CELLS, 91 (17): 1599-1610 OCT 15 2007

Durkin, GA; Dowling, JP Local and global distinguishability in quantum interferometry PHYSICAL REVIEW LETTERS, 99 (7): Art. No. 070801 AUG 17 2007

Zink, B; Stergioulas, N; Hawke, I; et al. Nonaxisymmetric instability and fragmentation of general relativistic quasitoroidal stars PHYSICAL REVIEW D, 76 (2): Art. No. 024019 JUL 2007

Kapale, KT; Dowling, JP Bootstrapping approach for generating maximally path-entangled photon states PHYSICAL REVIEW LETTERS, 99 (5): Art. No. 053602 AUG 3 2007

Jacobs, K; Lund, P Feedback control of nonlinear quantum systems: A rule of thumb PHYSICAL REVIEW LETTERS, 99 (2): Art. No. 020501 JUL 13 2007

Gambini, R; Porto, RA; Pullin, J Fundamental decoherence from quantum gravity: a pedagogical review GENERAL RELATIVITY AND GRAVITATION, 39 (8): 1143-1156 AUG 2007

Campiglia, M; Gambini, R; Pullin, J Loop quantization of spherically symmetric midi-superspaces CLASSICAL AND QUANTUM GRAVITY, 24 (14): 3649-3672 JUL 21 2007

Shizume, K; Jacobs, K; Burgarth, D; et al. Quantum communication via a continuously monitored dual spin chain PHYSICAL REVIEW A, 75 (6): Art. No. 062328 JUN 2007

Gambini, R; Pullin, J Relational physics with real rods and clocks and the measurement problem of quantum mechanics FOUNDATIONS OF PHYSICS, 37 (7): 1074-1092 JUL 2007

Jacobs, K; Lougovski, P; Blencowe, M Continuous measurement of the energy eigenstates of a nanomechanical resonator without a nondemolition probe PHYSICAL REVIEW LETTERS, 98 (14): Art. No. 147201 APR 6 2007

Gambini, R; Porto, RA; Pullin, J Fundamental spatio-temporal decoherence: A key to solving the conceptual problems of black holes, cosmology and quantum mechanics INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 15 (12): 2181-2185 DEC 2006

Kok, P; Munro, WJ; Nemoto, K; et al. Linear optical quantum computing with photonic qubits REVIEWS OF MODERN PHYSICS, 79 (1): 135-174 JAN-MAR 2007

Kapale, KT Polarization preserving quantum nondemolition photodetector JOURNAL OF MODERN OPTICS, 54 (2-3): 327-335 JAN 20 2007

Agarwal, GS; Chan, KW; Boyd, RW; et al. Quantum states of light produced by a high-gain optical parametric amplifier for use in quantum lithography JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 24 (2): 270-274 FEB 2007

Dotti, G; Gleiser, RJ; Pullin, J Instability of charged and rotating naked singularities PHYSICS LETTERS B, 644 (5-6): 289-293 JAN 25 2007

Jacobs, K; Steck, DA A straightforward introduction to continuous quantum measurement CONTEMPORARY PHYSICS, 47 (5): 279-303 SEP-OCT 2006

Campiglia, M; Di Bartolo, C; Gambini, R; et al. Uniform discretizations: A new approach for the quantization of totally constrained systems PHYSICAL REVIEW D, 74 (12): Art. No. 124012 DEC 2006

Jacobs, K; Dowling, JP Concatenated beam splitters, optical feed-forward, and the nonlinear sign gate PHYSICAL REVIEW A, 74 (6): Art. No. 064304 DEC 2006

Gambini, R; Pullin, J Consistent discretization and canonical, classical and quantum Regge calculus INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 15 (10): 1699-1706 OCT 2006

Agarwal, GS; Kapale, KT Subwavelength atom localization via coherent population trapping JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 39 (17): 3437-3446 SEP 14 2006

Steck, DA; Jacobs, K; Mabuchi, H; et al. Feedback cooling of atomic motion in cavity QED PHYSICAL REVIEW A, 74 (1): Art. No. 012322 JUL 2006

Gambini, R; Olson, SJ; Pullin, J Unified model of loop quantum gravity and matter GENERAL RELATIVITY AND GRAVITATION, 38 (4): 593-598 APR 2006

Guillaume, A; Dowling, JP Heisenberg-limited measurements with superconducting circuits PHYSICAL REVIEW A, 73 (4): Art. No. 040304 APR 2006

Han, MX; Ma, YG Dynamics of a scalar field in a polymer-like representation CLASSICAL AND QUANTUM GRAVITY, 23 (7): 2741-2760 APR 7 2006

Han, MX; Ma, YG Master constraint operators in loop quantum gravity PHYSICS LETTERS B, 635 (4): 225-231 APR 13 2006

Anderson, M; Lehner, L; Pullin, J Arbitrary black-string deformations in the black-string-black-hole transitions PHYSICAL REVIEW D, 73 (6): Art. No. 064011 MAR 2006

Gambini, R; Pullin, J Classical and quantum general relativity: A new paradigm INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 14 (12): 2355-2360 DEC 2005

Dowling, JP Quantum information - To compute or not to compute? NATURE, 439 (7079): 919-920 FEB 23 2006

Spedalieri, FM; Lee, H; Dowling, JP High-fidelity linear optical quantum computing with polarization encoding PHYSICAL REVIEW A, 73 (1): Art. No. 012334 JAN 2006

Gambini, R; Pullin, J Classical and quantum general relativity: A new paradigm GENERAL RELATIVITY AND GRAVITATION, 37 (10): 1689-1694 OCT 2005

Kapale, KT; Dowling, JP Vortex phase qubit: Generating arbitrary, counterrotating, coherent superpositions in bose-einstein condensates via optical angular momentum beams PHYSICAL REVIEW LETTERS, 95 (17): Art. No. 173601 OCT 21 2005

Sun, QQ; Rostovtsev, YV; Dowling, JP; et al. Optically controlled delays for broadband pulses PHYSICAL REVIEW A, 72 (3): Art. No. 031802 SEP 2005

Florescu, M; Lee, H; Stimpson, AJ; et al. Thermal emission and absorption of radiation in finite inverted-opal photonic crystals PHYSICAL REVIEW A, 72 (3): Art. No. 033821 SEP 2005

Gambini, R; Ponce, M; Pullin, J Consistent discretizations: The gowdy spacetimes PHYSICAL REVIEW D, 72 (2): Art. No. 024031 JUL 2005

Gambini, R; Porto, RA; Pullin, J Fundamental decoherence in quantum gravity BRAZILIAN JOURNAL OF PHYSICS, 35 (2A): 266-270 JUN 2005

Florescu, M; Scheel, S; Haffner, HH; et al. Single photons on demand from 3D photonic band-gap structures EUROPHYSICS LETTERS, 69 (6): 945-951 MAR 2005

Di Bartolo, C; Gambini, R; Pullin, J Consistent and mimetic discretizations in general relativity JOURNAL OF MATHEMATICAL PHYSICS, 46 (3): Art. No. 032501 MAR 2005

Gambini, R; Pullin, J Consistent discretization and loop quantum geometry PHYSICAL REVIEW LETTERS, 94 (10): Art. No. 101302 MAR 18 2005

Gambini, R; Porto, RA; Pullin, J No black hole information puzzle in a relational universe INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 13 (10): 2315-2320 DEC 2004

Di Bartolo, C; Gambini, R; Porto, RA; et al. Dirac-type approach for consistent discretizations of classical constrained theories JOURNAL OF MATHEMATICAL PHYSICS, 46 (1): Art. No. 012901 JAN 2005

Gambini, R; Porto, RA; Pullin, J Fundamental decoherence from relational time in discrete quantum gravity: Galilean covariance PHYSICAL REVIEW D, 70 (12): Art. No. 124001 DEC 2004

Gambini, R; Porto, RA; Pullin, J Realistic clocks, universal decoherence, and the black hole information paradox PHYSICAL REVIEW LETTERS, 93 (24): Art. No. 240401 DEC 10 2004

Gambini, R; Pullin, J Canonical quantum gravity and consistent discretizations PRAMANA-JOURNAL OF PHYSICS, 63 (4): 755-763 Sp. Iss. SI OCT 2004

Gambini, R; Porto, RA; Pullin, J Loss of quantum coherence from discrete quantum gravity CLASSICAL AND QUANTUM GRAVITY, 21 (8): L51-L57 APR 21 2004

Gambini, R; Porto, RA; Pullin, J A relational solution to the problem of time in quantum mechanics and quantum gravity: a fundamental mechanism for quantum decoherence NEW JOURNAL OF PHYSICS, 6: Art. No. 45 APR 14 2004

Gambini, R; Pullin, J Discrete quantum gravity: A mechanism for selecting the value of fundamental constants INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 12 (9): 1775-1781 OCT 2003

Calabrese, G; Lehner, L; Neilsen, D; et al. Novel finite-differencing techniques for numerical relativity: application to black-hole excision CLASSICAL AND QUANTUM GRAVITY, 20 (20): L245-L251 OCT 21 2003

Calabrese, G; Pullin, J; Reula, O; et al. Well posed constraint-preserving boundary conditions for the linearized Einstein equations COMMUNICATIONS IN MATHEMATICAL PHYSICS, 240 (1-2): 377-395 SEP 2003

Gambini, R; Pullin, J Discrete quantum gravity: cosmological examples CLASSICAL AND QUANTUM GRAVITY, 20 (15): 3341-3364 AUG 7 2003

Lopez-Aleman, R; Khanna, G; Pullin, J Perturbative evolution of particle orbits around Kerr black holes: time-domain calculation CLASSICAL AND QUANTUM GRAVITY, 20 (14): 3259-3268 JUL 21 2003

Gambini, R; Pullin, J Canonical quantization of general relativity in discrete space-times PHYSICAL REVIEW LETTERS, 90 (2): Art. No. 021301 JAN 17 2003

Di Bartolo, C; Gambini, R; Pullin, J Canonical quantization of constrained theories on discrete spacetime lattices CLASSICAL AND QUANTUM GRAVITY, 19 (21): 5275-5296 NOV 7 2002

Sarbach, O; Calabrese, G; Pullin, J; et al. Hyperbolicity of the Baumgarte-Shapiro-Shibata-Nakamura system of Einstein evolution equations PHYSICAL REVIEW D, 66 (6): Art. No. 064002 SEP 15 2002

Calabrese, G; Pullin, J; Sarbach, O; et al. Stability properties of a formulation of Einstein's equations PHYSICAL REVIEW D, 66 (6): Art. No. 064011 SEP 15 2002

Calabrese, G; Pullin, J; Sarbach, O; et al. Convergence and stability in numerical relativity PHYSICAL REVIEW D, 66 (4): Art. No. 041501 AUG 15 2002

Gambini, R; Pullin, J Finite spin-foam-based theory of three- and four-dimensional quantum gravity PHYSICAL REVIEW D, 66 (2): Art. No. 024020 JUL 15 2002

Gleiser, RJ; Khanna, G; Pullin, J Perturbative evolution of conformally flat initial data for a single boosted black hole PHYSICAL REVIEW D, 66 (2): Art. No. 024035 JUL 15 2002

Sarbach, O; Tiglio, M; Pullin, J Close limit evolution of Kerr-Schild type initial data for binary black holes PHYSICAL REVIEW D, 65 (6): Art. No. 064026 MAR 15 2002

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