HOFMANN HOLGER FRIEDRICHHOLGER FRIEDRICH HOFMANN

Last Updated :2021/04/06

所属・職名
大学院先進理工系科学研究科 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. 2021年, 教養教育, 1ターム, 物理学の原理
  2. 2021年, 学部専門, 3ターム, 電気磁気学II
  3. 2021年, 学部専門, 3ターム, 電気磁気学演習II
  4. 2021年, 修士課程・博士課程前期, 1ターム, Quantum Optics
  5. 2021年, 修士課程・博士課程前期, セメスター(前期), 電子工学セミナーA
  6. 2021年, 修士課程・博士課程前期, セメスター(後期), 電子工学セミナーB
  7. 2021年, 修士課程・博士課程前期, 年度, 電子工学プレゼンテーション演習
  8. 2021年, 修士課程・博士課程前期, 1ターム, 電子工学特別演習A
  9. 2021年, 修士課程・博士課程前期, 2ターム, 電子工学特別演習A
  10. 2021年, 修士課程・博士課程前期, 3ターム, 電子工学特別演習B
  11. 2021年, 修士課程・博士課程前期, 4ターム, 電子工学特別演習B
  12. 2021年, 修士課程・博士課程前期, 1ターム, Quantum Optics
  13. 2021年, 修士課程・博士課程前期, 年度, 量子物質科学特別研究
  14. 2021年, 博士課程・博士課程後期, 年度, 量子物質科学特別研究

研究活動

学術論文(★は代表的な論文)

  1. ★, Direct evaluation of measurement uncertainties by feedback compensation of decoherence, Physical Review Research, 3巻, pp. L012011, 20210203
  2. Contextuality of quantum fluctuations characterized by conditional weak values of entangled states, Physical Review A, 102巻, pp. 062215, 2020
  3. Exploring energy-time entanglement using the dynamics of two-photon absorption, Proc. SPIE, 11507巻, pp. 115070K, 202008
  4. Time of flight paradox for photons in a dispersive medium, Proc. SPIE, 11134巻, pp. 111340H, 201909
  5. Direct and efficient verification of entanglementbetween two multimode–multiphoton systems, Optica, 7巻, pp. 1517-1523, 20201029
  6. Quantum causality relations and the emergence of reality from coherent superpositions, Foundations of Physics, 20200518
  7. What Does the Operator Algebra of Quantum Statistics Tell Us about the Objective Causes of Observable Effects?, ENTROPY, 22巻, 6号, 202006
  8. ★, The role of system–meter entanglement in controlling the resolution and decoherence of quantum measurements, New Journal of Physics, 21巻, pp. 103006-1-103006-11, 20191001
  9. Local measurement uncertainties impose a limit on nonlocal quantum correlations, Physical Review A, 100巻, pp. 012123, 20190722
  10. Quantum enhancement of sensitivity achieved by photon-number-resolving detection in the dark port of a two-path interferometer operating at high intensities, Physical Review A, 100巻, pp. 013814, 20190709
  11. Experimental evaluation of the nonclassical relation between measurement errors using entangled photon pairs as a probe, Physical Review A, 98巻, pp. 062109, 20181207
  12. Experimental evaluation of the nonclassical relation between measurement errors using entangled photon pairs as a probe, PHYSICAL REVIEW A, 98巻, 6号, 20181207
  13. Photon number statistics of entanglement generated by multiple single photon sources, Proc. SPIE, 10409巻, pp. 1040904, 201708
  14. A statistical analysis of single photon propagation: how quantum interference modifies the laws of motion, Proc. SPIE, 10771巻, pp. 1077115, 201809
  15. Dynamics and statistics in the operator algebra of quantum mechanics, Reality and Measurement in Algebraic Quantum Theory, NWW 2015, Nagoya, Japan, March 9-13, Springer Proceedings in Mathematics and Statistics, Springer Nature Singapore 2018, pp. 179-194, 2018
  16. Control of particle propagation beyond the uncertainty limit by interference between position and momentum, PHYSICAL REVIEW A, 98巻, 5号, 20181106
  17. Derivation of the statistics of quantum measurements from the action of unitary dynamics, EUROPEAN PHYSICAL JOURNAL PLUS, 133巻, 3号, 20180323
  18. Evaluation of bipartite entanglement between two optical multi-mode systems using mode translation symmetry, NEW JOURNAL OF PHYSICS, 19巻, 20171025
  19. ★, Quantum interference of position and momentum: A particle propagation paradox, PHYSICAL REVIEW A, 96巻, 2号, 20170828
  20. Implementation of a quantum controlled-SWAP gate with photonic circuits, SCIENTIFIC REPORTS, 7巻, 20170331
  21. Observation of non-classical correlations in sequential measurements of photon polarization, NEW JOURNAL OF PHYSICS, 18巻, 20161025
  22. Quantum effects in the interference of photon number states, PHYSICAL REVIEW A, 94巻, 4号, 20161010
  23. ★, On the fundamental role of dynamics in quantum physics, EUROPEAN PHYSICAL JOURNAL D, 70巻, 5号, 20160524
  24. Experimental evaluation of nonclassical correlations between measurement outcomes and target observable in a quantum measurement, PHYSICAL REVIEW A, 93巻, 3号, 20160302
  25. Characterization of measurement uncertainties using the correlations between local outcomes obtained from maximally entangled pairs, PHYSICAL REVIEW A, 92巻, 4号, 20151019
  26. Reasonable conditions for joint probabilities of non-commuting observables, Quantum Studies: Mathematics and Foundations, 1巻, 1号, pp. 39-45, 20140705
  27. ★, 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, 20150622
  28. Derivation of quantum mechanics from a single fundamental modification of the relations between physical properties, PHYSICAL REVIEW A, 89巻, 4号, 20140424
  29. Simultaneous suppression of time and energy uncertainties in a single-photon frequency-comb state, PHYSICAL REVIEW A, 89巻, 5号, 20140515
  30. Radiation pattern of plasmonic nano-antennas in a homogeneous medium, OPTICS EXPRESS, 22巻, 11号, pp. 13263-13268, 20140602
  31. Sequential measurements of non-commuting observables with quantum controlled interactions, NEW JOURNAL OF PHYSICS, 16巻, 20140624
  32. Direct observation of temporal coherence by weak projective measurements of photon arrival time, PHYSICAL REVIEW A, 87巻, 6号, 20130619
  33. An investigation of the transfer dynamics of quantum teleportation by weak measurement statistics, JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 46巻, 24号, 20130621
  34. Quantum effects in the interaction of off-resonant coherent light with a single atom, PHYSICAL REVIEW A, 88巻, 1号, 20130708
  35. Optimal multi-photon phase sensing with a single interference fringe, SCIENTIFIC REPORTS, 3巻, 20130925
  36. ★, Complex joint probabilities as expressions of reversible transformations in quantum mechanics, NEW JOURNAL OF PHYSICS, 14巻, 20120424
  37. Clock synchronization using maximal multipartite entanglement, PHYSICAL REVIEW A, 86巻, 1号, 20120702
  38. ★, How Weak Values Emerge in Joint Measurements on Cloned Quantum Systems, PHYSICAL REVIEW LETTERS, 109巻, 2号, 20120713
  39. Analysis of the time-energy entanglement of down-converted photon pairs by correlated single-photon interference, PHYSICAL REVIEW A, 86巻, 4号, 20121015
  40. Violation of Leggett-Garg inequalities in quantum measurements with variable resolution and back-action, NEW JOURNAL OF PHYSICS, 14巻, 20121016
  41. Estimation of a quantum interaction parameter using weak measurements: Theory and experiment, PHYSICAL REVIEW A, 86巻, 4号, 20121022
  42. Uncertainty limits for quantum metrology obtained from the statistics of weak measurements, PHYSICAL REVIEW A, 83巻, 2号, 20110222
  43. Weak measurement of photon polarization by back-action-induced path interference, NEW JOURNAL OF PHYSICS, 13巻, 20110331
  44. 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. 10067-10071, 20110621
  45. 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, 20110913
  46. On the role of complex phases in the quantum statistics of weak measurements, NEW JOURNAL OF PHYSICS, 13巻, 20111011
  47. Interferometric weak measurement of photon polarization, AIP conference proceedings, 1363巻, pp. 145-148, 20111201
  48. ★, Complete characterization of post-selected quantum statistics using weak measurement tomography, PHYSICAL REVIEW A, 81巻, 1号, 201001
  49. Effects of photon losses on phase estimation near the Heisenberg limit using coherent light and squeezed vacuum, PHYSICAL REVIEW A, 81巻, 3号, 201003
  50. Analysis of experimental error sources in a linear-optics quantum gate, NEW JOURNAL OF PHYSICS, 12巻, 20100430
  51. ★, Directional control of light by a nano-optical Yagi-Uda antenna, NATURE PHOTONICS, 4巻, 5号, pp. 312-315, 201005
  52. ★, An Entanglement Filter, SCIENCE, 323巻, 5913号, pp. 483-485, 20090123
  53. ★, All path-symmetric pure states achieve their maximal phase sensitivity in conventional two-path interferometry, PHYSICAL REVIEW A, 79巻, 3号, 200903
  54. Pulse-shape effects on photon-photon interactions in nonlinear optical quantum gates, PHYSICAL REVIEW A, 80巻, 1号, 200907
  55. How to simulate a universal quantum computer using negative probabilities, JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 42巻, 27号, 20090710
  56. Reconstruction of spatial qutrit states based on realistic measurement operators, PHYSICAL REVIEW A, 80巻, 6号, 200912
  57. 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, 20080514
  58. Measurement and control of spatial qubits generated by passing photons through double slits, PHYSICAL REVIEW A, 78巻, 1号, 200807
  59. Beating the standard quantum limit: phase super-sensitivity of N-photon interferometers, NEW JOURNAL OF PHYSICS, 10巻, 20080718
  60. ★, Design parameters for a nano-optical Yagi-Uda antenna, NEW JOURNAL OF PHYSICS, 9巻, 20070706
  61. ★, 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, 200709
  62. Accidental cloning of a single-photon qubit in two-channel continuous-variable quantum teleportation, PHYSICAL REVIEW A, 75巻, 6号, 200706
  63. 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
  64. Optimal cloning of single photon polarization by coherent feedback of beam splitter losses, New Journal of Physics, 8巻, pp. 130, 20060401
  65. Analysis of an experimental quantum logic gate by complementary classical operations, Modern Physics Letters A, 21巻, pp. 1837, 20060401
  66. 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
  67. ★, Complementary classical fidelities as an efficient criterion for the evaluation of experimentally realized quantum operations, Physical Review Letters, 94巻, pp. 160504, 20050401
  68. Quantum parallelism of the controlled-NOT operation: an experimental criterion for the evaluation of device performance, Physical Review A, 72巻, pp. 022329, 20050401
  69. 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
  70. ★, Demonstration of an optical quantum controlled-NOT gate without path interference, Physical Review Letters, 95巻, pp. 210506, 20050401
  71. 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-S214, 200510
  72. Distinguishing genuine entangled two-photon polarization states from independently genarated entangled photons, Physical Review Letters, 92巻, pp. 153602, 20040401
  73. Quantum-state tomography for spin-l systems, Physical Review A, 69巻, pp. 042108, 20040401
  74. Efficiencies for the single-mode operation of a quantum optical nonlinear shift gate, Physical Review A, 70巻, pp. 013810, 20040401
  75. Generation of highly non-classical n-photon polarization states by superbunching at a photon bottleneck, Physical Review A, 70巻, pp. 023812, 20040401
  76. 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
  77. Uncertainty characteristics of generalized quantum measurements, Physical Review A, 67巻, pp. 022106, 20030401
  78. ★, Optimized phase switching using a single-atom nonlinearity, Journal of Optics B: Quantum and Semiclassical Optics, 5巻, pp. 218-221, 20030401
  79. 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
  80. ★, Violation of local uncertainty relations as a signature of entanglement, Physical Review A, 68巻, pp. 032103, 20030401
  81. Bound entangled states violate a non-symmetric local uncertainty relation, Physical Review A, 68巻, pp. 034307, 20030401
  82. 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
  83. Continuous-variable teleportation of single-photon states, Physical Review A, 65巻, pp. 012313, 20020401
  84. Photon echo signature of vibrational superposition states created by femtosecond excitation of molecules, Journal of Optics B: Quantum and Semiclassical Optics, 4巻, pp. 99-102, 20020401
  85. Quantum filter for nonlocal polarization properties of photonic qubits, Physical Review Letters, 88巻, pp. 147901, 20020401
  86. Gain tuning and fidelity in continuous variable quantum teleportation, Physical Review A, 65巻, pp. 062303, 20020401
  87. ★, Quantum phase gate for photonic qubits using only beam splitters and postselection, Physical Review A, 66巻, pp. 024308, 20020401
  88. Causality in quantum teleportation: Information extraction and noise effects in entanglement distribution, Physical Review A, 66巻, pp. 032317, 20020401
  89. Finite resolution measurement of the non-classical polarization statistics of entangled photon pairs, Physical Review A, 63巻, pp. 042106, 20010401
  90. Information losses in continuous variable quantum teleportation, Physical Review A, 64巻, pp. 040301(R), 20010401
  91. Nonclassical correlations of phase noise and photon number in quantum nondemolition measurements, Physical Review A, 61巻, pp. 033815, 20000401
  92. Information and noise in quantum measurement, Physical Review A, 62巻, pp. 022103, 20000401
  93. Nonclassical correlations of photon number and field components in the vacuum state, Physical Review A, 62巻, pp. 013806, 20000401
  94. Thermal photon statistics in laser light above threshold, Physical Review A, 62巻, pp. 063807, 20000401
  95. 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. 1926-1933, 20000401
  96. ★, Fidelity and information in the quantum teleportation of continuous variables, Physical Review A, 62巻, pp. 062304, 20000401
  97. Spatial holeburning effects in the amplified spontaneous emission spectra of the non-lasing supermode in semiconductor laser arrays, Journal of the Optical Society of America B, 16巻, pp. 137-146, 19990401
  98. Quantum Maxwell-Bloch equations for spatially inhomogeneous semiconductor lasers, Physical Review A, 59巻, pp. 2342-2358, 19990401
  99. Polarization fluctuations in vertical cavity surface emitting lasers: a key to the mechanism behind polarization stability, Quantum and Semiclassical Optics, 10巻, pp. 87-96, 19980401
  100. Quantum control by compensation of quantum fluctuations, Optics Express, 2巻, pp. 339-346, 19980401
  101. Spontaneous emission spectrum of the non-lasing supermodes in semiconductor laser arrays, Optics Letters, 23巻, pp. 391-393, 19980401
  102. Quantum control of atomic systems by homodyne detection and feedback, Physical Review A, 57巻, pp. 4877-4888, 19980401
  103. Quantum noise and polarization fluctuations in vertical cavity surfac emitting lasers, Physical Review A, 56巻, pp. 868-876, 19970401
  104. A dynamical model of the chemical bond, Pflugers Arch - European Journal of Physiology, 18巻, pp. 354-362, 19970401
  105. The split density model: a unified description of polarization and array dynamics for vertical cavity surface emitting lasers, Quantum and Semiclassical Optics, 9巻, pp. 749-763, 19970401
  106. Illumination induced inhomogeneity in the carrier density profile of split gate devices, Semiconductor Science and technology, 11巻, pp. 1085-1089, 19960401
  107. Measurement models for time-resolved spectroscopy: a comment, Quantum and Semiclassical Optics, 7巻, pp. 489-497, 19950401

招待講演、口頭・ポスター発表等

  1. Feedback compensation reveals the contextuality of quantum fluctuations, Holger F. Hofmann, OSA Frontiers in Optics, 2020年09月16日, 招待, 英語, OSA Quantum Optical Science and Technology Technical Group, online, OSA 20x20 talk
  2. Exploring energy-time entanglement using the dynamics of two-photon absorption, Baihong Li, Holger F. Hofmann, SPIE Quantum Communications and Quantum Imaging XVII, 2020年08月24日, 招待, 英語, SPIE, held online from USA
  3. Quantum interference, causality, and the physics of control, Holger F. Hofmann, Quantum Foundations: Measurement & Entanglement, 2020年02月10日, 招待, 英語, KEK Tsukuba, KEK Tsukuba
  4. Quantum interactions and the physics of control, Holger F. Hofmann, QIPQC 2019, 2019年12月10日, 招待, 英語, IAR, Nagoya University and FRIAS, Freiburg University, Sakata-Hirata Hall, Nagoya University
  5. Time of flight paradox for photons in a dispersive medium, Holger F. Hofmann, SPIE Optics and Photonics 2019, 2019年08月11日, 招待, 英語, SPIE, San Diego Convention Center, SanDiego, California, USA
  6. When is experience objective? - Measurement interactions and the emergence of reality, H. F. Hofmann, Quantum Information Revolution: Impact on Foundations, 2019年06月11日, 招待, 英語, Linnaeus Univeristy, Linnaeus Univeristy, Vaxjo, Sweden
  7. A statistical analysis of single photon propagation: How quantum interference modifies the laws of motion, H. F. Hofmann, SPIE Quantum Communications and Quantum Imaging XVI, 2018年08月20日, 招待, 英語, SPIE, San Diego Convention Center, San Diego, California, USA
  8. Quantum Mechanics as a Theory of Cause and Effect: Why there is no Reality without a Corresponding Action, H. F. Hofmann, 7th International Conference on New Frontiers in Physics (ICNFP 2018), 2018年07月11日, 招待, 英語, Orthodox Academy of Crete, Kolymbari, Greece
  9. Superpositions of causality: and analysis of the mechanism of control in the quantum limit, H.F. Hofmann, 3rd International Conference on Quantum Foundations, ICQF-17, 2017年12月07日, 招待, 英語, National Institute of Technology Patna, Patna, India
  10. Photon number statistics of entanglement generated by multiple single photon sources, J.-Y. Wu, H. F. Hofmann, SPIE Quantum Communications and Quantum Imaging XV Conference, 2017年08月06日, 招待, 英語, SPIE, San Diego Convention Center, San Diego, California, USA
  11. Fundamental Investigations into the non-classical nature of quantum correlations, Holger F. Hofmann, JPS 2016 Autumn Meeting, 2016年09月14日, 招待, 英語, Japanese Physical Society, Kanazawa University, Japan
  12. Why interactions matter: how the laws of dynamics determine the shape of physical reality, Holger F. Hofmann, Concepts and Paradoxes in a Quantum Universe, 2016年06月24日, 招待, 英語, Perimeter Institute, Waterloo, Canada, Perimeter Institute, Waterloo, Canada, Quantum statistics can be explained by the laws of motion governing the dynamics of quantum systems. The origin of uncertainty is traced to the dynamics of the state preparation process.
  13. How to uncover the physics of quantum correlations through combinations of weak and strong measurements, H.F. Hofmann, International Workshop on Weak Value and Weak Measurement, 2015年03月19日, 招待, 英語, Tokyo Institute of Technology, Tokyo Institute of Technology, Ookayama Campus, Tokyo, Japan
  14. From experimental evidence to quantum physics: what measurement reveals about the dynamical structure of reality, H.F. Hofmann, Nagoya Winter Workshop 2015, 2015年03月09日, 招待, 英語, Nagoya University, Nagoya University, Nagoya, Japan
  15. Why complex probabilities make sense: New insights into the relations between weak measurements, paradoxical correlations, and causality in quantum systems, Holger F. Hofmann, AQIS 2014, 2014年08月21日, 招待, 英語, Asian Quantum Information Science Conference, Shiran Kaikan, Kyoto University, Kyoto, Japan

受賞

  1. 2020年09月23日, IOP trusted reviewer, IOP publishing, IOP trusted reviewer
  2. 2015年01月09日, APS Outstanding Referee, American Physical Society, Outstanding Referee
  3. 2015年06月17日, OSA Senior Membership, Optical Society of America, OSA Senior Member

社会活動

学術会議等の主催

  1. 第 38 回量子情報技術研究会, 2018年06月

学術雑誌論文査読歴

  1. 2020年, The European Physical Journal D, その他, Referee, 1
  2. 2020年, Scientific Reports, その他, Referee, 1
  3. 2020年, Entropy, 編集員, Guest Editor
  4. 2020年, New Journal of Physics, その他, Referee, 2
  5. 2020年, Foundations of Physics, その他, Referee, 2
  6. 2020年, Physical Review, その他, Referee, 13
  7. 2019年, Physical Review A, その他, Referee, 4
  8. 2019年, New Journal of Physics, その他, Referee, 1
  9. 2019年, Optica, その他, Referee, 1
  10. 2018年, Physical Review, その他, Referee, 4
  11. 2018年, New Journal of Physics, その他, Referee, 1
  12. 2018年, Nature Physics, その他, Reviewer, 1
  13. 2018年, Quantum Studies: Mathematics and Foundations, その他, Referee, 1
  14. 2017年, Physical Review, その他, Referee, 4
  15. 2017年, Journal of Physics A, その他, Referee, 1
  16. 2017年, Quantum Science and Technology, その他, Referee, 1
  17. 2016年, Physical Review, Referee, 6
  18. 2016年, Scientific Reports, その他, Referee, 1
  19. 2015年, Physical Review, その他, Referee, 9
  20. 2015年, New Journal of Physics, その他, Referee, 1
  21. 2015年, Journal of Physics A, その他, Referee, 1
  22. 2014年, Physical Review A, その他, Referee, 12