HOFMANN HOLGER FRIEDRICHHOLGER FRIEDRICH HOFMANN

Last Updated :2018/06/01

所属・職名
大学院先端物質科学研究科 量子物質科学講座 准教授
メールアドレス
hofmannhiroshima-u.ac.jp

基本情報

学位

  • 理学博士 (シュツットガルト大学)
  • 物理学修士 (シュツットガルト大学)

研究分野

  • 数物系科学 / 物理学 / 原子・分子・量子エレクトロニクス

研究キーワード

  • 量子光学、量子情報、量子論の基礎

教育活動

授業担当

  1. 2018年, 教養教育, 1ターム, 物理学の原理
  2. 2018年, 学部専門, 3ターム, 電気磁気学II
  3. 2018年, 学部専門, 集中, 電気磁気学II
  4. 2018年, 学部専門, 3ターム, 電気磁気学演習II
  5. 2018年, 博士課程・博士課程後期, 年度, 量子物質科学特別研究II
  6. 2018年, 修士課程・博士課程前期, セメスター(前期), 応用量子科学コースセミナー
  7. 2018年, 修士課程・博士課程前期, セメスター(後期), 応用量子科学コースセミナー
  8. 2018年, 修士課程・博士課程前期, 通年, 量子物質科学特別研究Ⅰ
  9. 2018年, 修士課程・博士課程前期, 年度, 量子物質科学特別研究Ⅰ

研究活動

学術論文(★は代表的な論文)

  1. Accidental cloning of a single-photon qubit in two-channel continuous-variable quantum teleportation, PHYSICAL REVIEW A, 75巻, 6号, JUN 2007
  2. ★, Design parameters for a nano-optical Yagi-Uda antenna, NEW JOURNAL OF PHYSICS, 9巻, JUL 6 2007
  3. ★, High-photon-number path entanglement in the interference of spontaneously down-converted photon pairs with coherent laser light, PHYSICAL REVIEW A, 76巻, 3号, SEP 2007
  4. Quantum enhancement of N-photon phase sensitivity by interferometric addition of down-converted photon pairs to weak coherent light, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 41巻, 9号, MAY 14 2008
  5. Measurement and control of spatial qubits generated by passing photons through double slits, PHYSICAL REVIEW A, 78巻, 1号, JUL 2008
  6. Beating the standard quantum limit: phase super-sensitivity of N-photon interferometers, NEW JOURNAL OF PHYSICS, 10巻, JUL 18 2008
  7. ★, An Entanglement Filter, SCIENCE, 323巻, 5913号, pp.483-pp.485, JAN 23 2009
  8. ★, All path-symmetric pure states achieve their maximal phase sensitivity in conventional two-path interferometry, PHYSICAL REVIEW A, 79巻, 3号, MAR 2009
  9. How to simulate a universal quantum computer using negative probabilities, JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 42巻, 27号, JUL 10 2009
  10. Pulse-shape effects on photon-photon interactions in nonlinear optical quantum gates, PHYSICAL REVIEW A, 80巻, 1号, JUL 2009
  11. Reconstruction of spatial qutrit states based on realistic measurement operators, PHYSICAL REVIEW A, 80巻, 6号, DEC 2009
  12. ★, Complete characterization of post-selected quantum statistics using weak measurement tomography, PHYSICAL REVIEW A, 81巻, 1号, JAN 2010
  13. ★, Directional control of light by a nano-optical Yagi-Uda antenna, NATURE PHOTONICS, 4巻, 5号, pp.312-pp.315, MAY 2010
  14. Effects of photon losses on phase estimation near the Heisenberg limit using coherent light and squeezed vacuum, PHYSICAL REVIEW A, 81巻, 3号, MAR 2010
  15. Uncertainty limits for quantum metrology obtained from the statistics of weak measurements, PHYSICAL REVIEW A, 83巻, 2号, FEB 22 2011
  16. Weak measurement of photon polarization by back-action-induced path interference, NEW JOURNAL OF PHYSICS, 13巻, MAR 31 2011
  17. Realization of a Knill-Laflamme-Milburn controlled-NOT photonic quantum circuit combining effective optical nonlinearities, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 108巻, 25号, pp.10067-pp.10071, JUN 21 2011
  18. Time-resolved measurement of the quantum states of photons using two-photon interference with short-time reference pulses, PHYSICAL REVIEW A, 84巻, 3号, SEP 13 2011
  19. On the role of complex phases in the quantum statistics of weak measurements, NEW JOURNAL OF PHYSICS, 13巻, OCT 11 2011
  20. Measurement models for time-resolved spectroscopy: a comment, Quantum and Semiclassical Optics, 7巻, pp.489-pp.497, 19950401
  21. Quantum control of atomic systems by homodyne detection and feedback, Physical Review A, 57巻, pp.4877-pp.4888, 19980401
  22. Thermal photon statistics in laser light above threshold, Physical Review A, 62巻, pp.063807, 20000401
  23. Coexistence of thermal noise and squeezing in the intensity fluctuations of small laser diodes, Journal of the Optical Society of America B, 17巻, pp.1926-pp.1933, 20000401
  24. ★, Fidelity and information in the quantum teleportation of continuous variables, Physical Review A, 62巻, pp.062304, 20000401
  25. Information losses in continuous variable quantum teleportation, Physical Review A, 64巻, pp.040301(R), 20010401
  26. Continuous-variable teleportation of single-photon states, Physical Review A, 65巻, pp.012313, 20020401
  27. Quantum filter for nonlocal polarization properties of photonic qubits, Physical Review Letters, 88巻, pp.147901, 20020401
  28. Gain tuning and fidelity in continuous variable quantum teleportation, Physical Review A, 65巻, pp.062303, 20020401
  29. ★, Quantum phase gate for photonic qubits using only beam splitters and postselection, Physical Review A, 66巻, pp.024308, 20020401
  30. Causality in quantum teleportation: Information extraction and noise effects in entanglement distribution, Physical Review A, 66巻, pp.032317, 20020401
  31. Uncertainty characteristics of generalized quantum measurements, Physical Review A, 67巻, pp.022106, 20030401
  32. ★, Optimized phase switching using a single-atom nonlinearity, Journal of Optics B: Quantum and Semiclassical Optics, 5巻, pp.218-pp.221, 20030401
  33. Nonlinear interaction of two photons with a one-dimensional atom: spatiotemporal quantum coherence in the emitted field, Physical Review A, 68巻, pp.013803, 20030401
  34. ★, Violation of local uncertainty relations as a signature of entanglement, Physical Review A, 68巻, pp.032103, 20030401
  35. Bound entangled states violate a non-symmetric local uncertainty relation, Physical Review A, 68巻, pp.034307, 20030401
  36. Entanglement and four wave mixing effects in the dissipation free nonlinear interaction of two photons at a single atom, Physical Review A, 68巻, pp.043813, 20030401
  37. Distinguishing genuine entangled two-photon polarization states from independently genarated entangled photons, Physical Review Letters, 92巻, pp.153602, 20040401
  38. Quantum-state tomography for spin-l systems, Physical Review A, 69巻, pp.042108, 20040401
  39. Efficiencies for the single-mode operation of a quantum optical nonlinear shift gate, Physical Review A, 70巻, pp.013810, 20040401
  40. Generation of highly non-classical n-photon polarization states by superbunching at a photon bottleneck, Physical Review A, 70巻, pp.023812, 20040401
  41. Effects of decoherence on the nonlinear optical phase shift obtained from a one-dimensional atom, Japanese Journal of Applied Physics, 43巻, pp.7495, 20040401
  42. A study on the shape of two-photon wavefunctions after the nonlinear interaction with a one-dimensional atom, Nonlinear Optics= Quantum Optics, 32巻, pp.221, 20050401
  43. ★, Complementary classical fidelities as an efficient criterion for the evaluation of experimentally realized quantum operations, Physical Review Letters, 94巻, pp.160504, 20050401
  44. Quantum parallelism of the controlled-NOT operation: an experimental criterion for the evaluation of device performance, Physical Review A, 72巻, pp.022329, 20050401
  45. Simulation of interaction Hamiltonians by quantum feedback: a comment on the dynamics of information exchange between coupled systems, Journal of Optics B: Quantum and Semicalssical Optics, 7巻, pp.S208-S214, 20050401
  46. ★, Demonstration of an optical quantum controlled-NOT gate without path interference, Physical Review Letters, 95巻, pp.210506, 20050401
  47. Generation of a highly phase sensitive polarization squeezed N-photon state by collinear parametric downconversion and photon subtraction, Physical Review A, 74巻, pp.013808, 20060401
  48. Optimal cloning of single photon polarization by coherent feedback of beam splitter losses, New Journal of Physics, 8巻, pp.130, 20060401
  49. Analysis of an experimental quantum logic gate by complementary classical operations, Modern Physics Letters A, 21巻, pp.1837, 20060401
  50. Simulation of interaction Hamiltonians by quantum feedback: a comment on the dynamics of information exchange between coupled systems, JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 7巻, 10号, pp.S208-pp.S214, OCT 2005
  51. Analysis of experimental error sources in a linear-optics quantum gate, NEW JOURNAL OF PHYSICS, 12巻, APR 30 2010
  52. ★, Complex joint probabilities as expressions of reversible transformations in quantum mechanics, NEW JOURNAL OF PHYSICS, 14巻, APR 24 2012
  53. Clock synchronization using maximal multipartite entanglement, PHYSICAL REVIEW A, 86巻, 1号, JUL 2 2012
  54. ★, How Weak Values Emerge in Joint Measurements on Cloned Quantum Systems, PHYSICAL REVIEW LETTERS, 109巻, 2号, JUL 13 2012
  55. Analysis of the time-energy entanglement of down-converted photon pairs by correlated single-photon interference, PHYSICAL REVIEW A, 86巻, 4号, OCT 15 2012
  56. Estimation of a quantum interaction parameter using weak measurements: Theory and experiment, PHYSICAL REVIEW A, 86巻, 4号, OCT 22 2012
  57. Violation of Leggett-Garg inequalities in quantum measurements with variable resolution and back-action, NEW JOURNAL OF PHYSICS, 14巻, OCT 16 2012
  58. An investigation of the transfer dynamics of quantum teleportation by weak measurement statistics, JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 46巻, 24号, JUN 21 2013
  59. Direct observation of temporal coherence by weak projective measurements of photon arrival time, PHYSICAL REVIEW A, 87巻, 6号, JUN 19 2013
  60. Quantum effects in the interaction of off-resonant coherent light with a single atom, PHYSICAL REVIEW A, 88巻, 1号, JUL 8 2013
  61. Optimal multi-photon phase sensing with a single interference fringe, SCIENTIFIC REPORTS, 3巻, SEP 25 2013
  62. Derivation of quantum mechanics from a single fundamental modification of the relations between physical properties, PHYSICAL REVIEW A, 89巻, 4号, APR 24 2014
  63. Simultaneous suppression of time and energy uncertainties in a single-photon frequency-comb state, PHYSICAL REVIEW A, 89巻, 5号, MAY 15 2014
  64. Radiation pattern of plasmonic nano-antennas in a homogeneous medium, OPTICS EXPRESS, 22巻, 11号, pp.13263-pp.13268, JUN 2 2014
  65. Sequential measurements of non-commuting observables with quantum controlled interactions, NEW JOURNAL OF PHYSICS, 16巻, JUN 24 2014
  66. ★, Quantum paradoxes originating from the nonclassical statistics of physical properties related to each other by half-periodic transformations, PHYSICAL REVIEW A, 91巻, 6号, JUN 22 2015
  67. Reasonable conditions for joint probabilities of non-commuting observables, Quantum Studies: Mathematics and Foundations, 1巻, 1号, pp.39-pp.45, JUL 5 2014
  68. Characterization of measurement uncertainties using the correlations between local outcomes obtained from maximally entangled pairs, PHYSICAL REVIEW A, 92巻, 4号, OCT 19 2015
  69. Experimental evaluation of nonclassical correlations between measurement outcomes and target observable in a quantum measurement, PHYSICAL REVIEW A, 93巻, 3号, MAR 2 2016
  70. On the fundamental role of dynamics in quantum physics, EUROPEAN PHYSICAL JOURNAL D, 70巻, 5号, MAY 24 2016
  71. Quantum effects in the interference of photon number states, PHYSICAL REVIEW A, 94巻, 4号, OCT 10 2016
  72. Observation of non-classical correlations in sequential measurements of photon polarization, NEW JOURNAL OF PHYSICS, 18巻, OCT 25 2016
  73. Implementation of a quantum controlled-SWAP gate with photonic circuits, SCIENTIFIC REPORTS, 7巻, MAR 31 2017

招待講演、口頭・ポスター発表等

  1. 2016年06月24日, 招待, 英語

受賞

  1. 2015年10月, APS Outstanding Referee, American Physical Society, Outstanding Referee
  2. 2015年06月17日, OSA Senior Membership, Optical Society of America, OSA Senior Member