Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 06/2015, Volume 91, Issue 6

Macroscopic realism, the classical world view that macroscopic objects exist independently of and are not influenced by measurements, is usually tested using...

STATES | REDUCTION | ENTANGLEMENT | OBSERVABLES | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | LEGGETT-GARG INEQUALITY | OPTICS | MACROREALISM | VIOLATION | Physics - Quantum Physics

STATES | REDUCTION | ENTANGLEMENT | OBSERVABLES | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | LEGGETT-GARG INEQUALITY | OPTICS | MACROREALISM | VIOLATION | Physics - Quantum Physics

Journal Article

Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 05/2013, Volume 87, Issue 5

In 1985, Leggett and Garg put forward the concept of macroscopic realism (macrorealism) and, in analogy to Bell's theorem, derived a necessary condition in...

REDUCTION | ENTANGLEMENT | PHOTONS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | STATE | SYSTEMS | EXPERIMENTAL VIOLATION | OPTICS | QUANTUM-MECHANICS | BELLS-INEQUALITY | MACROREALISM | MOLECULES | Physics - Quantum Physics

REDUCTION | ENTANGLEMENT | PHOTONS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | STATE | SYSTEMS | EXPERIMENTAL VIOLATION | OPTICS | QUANTUM-MECHANICS | BELLS-INEQUALITY | MACROREALISM | MOLECULES | Physics - Quantum Physics

Journal Article

EPL (Europhysics Letters), ISSN 0295-5075, 08/1999, Volume 47, Issue 4, pp. 407 - 413

The possibility of observing violations of temporal Bell inequalities: originally proposed by Leggett and Garg as a mean of testing the quantum-mechanical...

REALISM | MECHANICS | LIMITATIONS | PHYSICS, MULTIDISCIPLINARY | THEOREM | MACROSCOPIC QUANTUM COHERENCE | SQUIDS | MAGNETIC-FLUX | MACROREALISM | Physics - Quantum Physics

REALISM | MECHANICS | LIMITATIONS | PHYSICS, MULTIDISCIPLINARY | THEOREM | MACROSCOPIC QUANTUM COHERENCE | SQUIDS | MAGNETIC-FLUX | MACROREALISM | Physics - Quantum Physics

Journal Article

Current Science, ISSN 0011-3891, 2015, Volume 109, Issue 11, pp. 1958 - 1964

The macrorealistic inequality of Leggett and Garg is reviewed, along with a recent experiment that aims to test it.

Leggett-Garg inequality | Macrorealism | Superposition | Interference | Transmon | PHYSICAL REALITY | superposition | MULTIDISCIPLINARY SCIENCES | QUANTUM-MECHANICAL DESCRIPTION | transmon | macrorealism

Leggett-Garg inequality | Macrorealism | Superposition | Interference | Transmon | PHYSICAL REALITY | superposition | MULTIDISCIPLINARY SCIENCES | QUANTUM-MECHANICAL DESCRIPTION | transmon | macrorealism

Journal Article

Physics Letters A, ISSN 0375-9601, 07/2016, Volume 380, Issue 29-30, pp. 2265 - 2270

In the context of temporal correlations of particles with arbitrary spin, we obtain optimal violation of the Leggett–Garg inequality (LGI), improving upon an...

Macrorealism | Coarse grained measurement | Temporal correlation | Quantum-classical transition | HIDDEN-VARIABLES | REALISM | PHYSICS, MULTIDISCIPLINARY | FLUX | SUPERPOSITION | QUANTUM-MECHANICS | BELL INEQUALITIES | Measurement | Equality | Correlation | Theorem proving | Inequalities | Emergence | Solid state physics | Sharpness | Optimization | Adaptation

Macrorealism | Coarse grained measurement | Temporal correlation | Quantum-classical transition | HIDDEN-VARIABLES | REALISM | PHYSICS, MULTIDISCIPLINARY | FLUX | SUPERPOSITION | QUANTUM-MECHANICS | BELL INEQUALITIES | Measurement | Equality | Correlation | Theorem proving | Inequalities | Emergence | Solid state physics | Sharpness | Optimization | Adaptation

Journal Article

Experimental Astronomy, ISSN 0922-6435, 10/2012, Volume 34, Issue 2, pp. 123 - 164

Quantum physics challenges our understanding of the nature of physical reality and of space-time and suggests the necessity of radical revisions of their...

Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences | Fundamental physics | Quantum mechanics | Space mission | Quantum optomechanics | Macrorealism | ESA’s cosmic vision | Physics | Astronomy, Observations and Techniques | Equivalence principle | ESA's cosmic vision

Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences | Fundamental physics | Quantum mechanics | Space mission | Quantum optomechanics | Macrorealism | ESA’s cosmic vision | Physics | Astronomy, Observations and Techniques | Equivalence principle | ESA's cosmic vision

Journal Article

Entropy, ISSN 1099-4300, 03/2018, Volume 20, Issue 3, p. 200

The Leggett-Garg inequalities serve to test whether or not quantum correlations in time can be explained within a classical macrorealistic framework. We apply...

Quantum work | Leggett-Garg inequalities | Macrorealism | quantum work | PHYSICS, MULTIDISCIPLINARY | THEOREM | FREE-ENERGY DIFFERENCES | SYSTEMS | macrorealism | COUNTING STATISTICS | VIOLATION | Variations | Thermodynamics | Quantum theory | Inequalities | Physics - Quantum Physics

Quantum work | Leggett-Garg inequalities | Macrorealism | quantum work | PHYSICS, MULTIDISCIPLINARY | THEOREM | FREE-ENERGY DIFFERENCES | SYSTEMS | macrorealism | COUNTING STATISTICS | VIOLATION | Variations | Thermodynamics | Quantum theory | Inequalities | Physics - Quantum Physics

Journal Article

Proceedings: Mathematical, Physical and Engineering Sciences, ISSN 1364-5021, 5/2010, Volume 466, Issue 2117, pp. 1347 - 1363

Mounting experimental and theoretical evidence suggest that coherent quantum effects play a role in the efficient transfer of an excitation from a chlorosome...

Excitons | Quantum efficiency | Evolution equations | Quantum mechanics | Quantum decoherence | Photons | Photosynthesis | Energy transfer | Room temperature | Antennas | Leggett-Garg inequality | Fenna-Matthews-Olson protein complex | Prosthecochloris aestuarii | Macrorealism | Quantum effects in biological systems | quantum effects in biological systems | BACTERIA | PROTEIN | MULTIDISCIPLINARY SCIENCES | prosthecochloris aestuarii | ANTENNA | macrorealism | MOTION | DYNAMICS | ENERGY-TRANSFER | QUANTUM-MECHANICS | COHERENCE | PHOTOSYNTHESIS | Mounting | Proteins | Frames | Computer simulation | Coherence | Inequalities | Mathematical models | Physics - Quantum Physics

Excitons | Quantum efficiency | Evolution equations | Quantum mechanics | Quantum decoherence | Photons | Photosynthesis | Energy transfer | Room temperature | Antennas | Leggett-Garg inequality | Fenna-Matthews-Olson protein complex | Prosthecochloris aestuarii | Macrorealism | Quantum effects in biological systems | quantum effects in biological systems | BACTERIA | PROTEIN | MULTIDISCIPLINARY SCIENCES | prosthecochloris aestuarii | ANTENNA | macrorealism | MOTION | DYNAMICS | ENERGY-TRANSFER | QUANTUM-MECHANICS | COHERENCE | PHOTOSYNTHESIS | Mounting | Proteins | Frames | Computer simulation | Coherence | Inequalities | Mathematical models | Physics - Quantum Physics

Journal Article

Studies in History and Philosophy of Modern Physics, ISSN 1355-2198, 05/2017, Volume 58, pp. 41 - 53

A quantum pre- and post-selection paradox involves making measurements at two separate times on a quantum system, and making inferences about the state of the...

Three box paradox | Macrorealism | Leggett–Garg Inequality | Pre- and post-selection | Quantum theory | Leggett-Garg Inequality | 3-BOX PARADOX | MECHANICS | PHYSICS, MULTIDISCIPLINARY | HISTORY & PHILOSOPHY OF SCIENCE | TIME | Measurement

Three box paradox | Macrorealism | Leggett–Garg Inequality | Pre- and post-selection | Quantum theory | Leggett-Garg Inequality | 3-BOX PARADOX | MECHANICS | PHYSICS, MULTIDISCIPLINARY | HISTORY & PHILOSOPHY OF SCIENCE | TIME | Measurement

Journal Article

EXPERIMENTAL ASTRONOMY, ISSN 0922-6435, 10/2012, Volume 34, Issue 2, pp. 123 - 164

Quantum physics challenges our understanding of the nature of physical reality and of space-time and suggests the necessity of radical revisions of their...

DECOHERENCE | LASER | Quantum optomechanics | STATE-VECTOR | OSCILLATOR | Equivalence principle | ESA's cosmic vision | Fundamental physics | WAVE-FUNCTION | MECHANICS | REDUCTION | Quantum mechanics | ASTRONOMY & ASTROPHYSICS | Space mission | DYNAMICS | INTERFERENCE | Macrorealism | SILICA

DECOHERENCE | LASER | Quantum optomechanics | STATE-VECTOR | OSCILLATOR | Equivalence principle | ESA's cosmic vision | Fundamental physics | WAVE-FUNCTION | MECHANICS | REDUCTION | Quantum mechanics | ASTRONOMY & ASTROPHYSICS | Space mission | DYNAMICS | INTERFERENCE | Macrorealism | SILICA

Journal Article

理论物理通讯：英文版, ISSN 0253-6102, 2014, Issue 9, pp. 320 - 326

As is well known, the macroscopic realism and the noninvasive measurability together lead to Leggett–Garg inequalities violated by quantum mechanics. We...

Leggett–Garg | measurability | theorem | inequalities | noninvasive | conditional | q-entropies | Bell | macrorealism

Leggett–Garg | measurability | theorem | inequalities | noninvasive | conditional | q-entropies | Bell | macrorealism

Journal Article

Foundations of Physics, ISSN 0015-9018, 2/2012, Volume 42, Issue 2, pp. 256 - 265

The rise of quantum information theory has lent new relevance to experimental tests for non-classicality, particularly in controversial cases such as adiabatic...

History and Philosophical Foundations of Physics | Leggett-Garg inequality | Philosophy of Science | Mechanics | Quantum Physics | Clumsiness loophole | Macrorealism | Statistical Physics, Dynamical Systems and Complexity | Classical and Quantum Gravitation, Relativity Theory | Non-invasive measurability | Physics | PHYSICS, MULTIDISCIPLINARY | INEQUALITY | TIME | Research | Quantum theory | Mathematical physics | Information theory | Physics - Quantum Physics

History and Philosophical Foundations of Physics | Leggett-Garg inequality | Philosophy of Science | Mechanics | Quantum Physics | Clumsiness loophole | Macrorealism | Statistical Physics, Dynamical Systems and Complexity | Classical and Quantum Gravitation, Relativity Theory | Non-invasive measurability | Physics | PHYSICS, MULTIDISCIPLINARY | INEQUALITY | TIME | Research | Quantum theory | Mathematical physics | Information theory | Physics - Quantum Physics

Journal Article

Communications in Theoretical Physics, ISSN 0253-6102, 09/2014, Volume 62, Issue 3, pp. 320 - 326

As is well known, the macroscopic realism and the noninvasive measurability together lead to Leggett-Garg inequalities violated by quantum mechanics. We...

conditional q-entropies | noninvasive measurability | Bell theorem | Leggett-Garg inequalities | macrorealism | PHYSICS, MULTIDISCIPLINARY | EXPERIMENTAL VIOLATION | PARTITIONS | TIME | QUANTUM-MECHANICS | BELL | Incompatibility | Theoretical physics | Quantum mechanics | Probability theory | Inequalities | Mathematical models | Probabilistic methods | Compatibility | Physics - Quantum Physics

conditional q-entropies | noninvasive measurability | Bell theorem | Leggett-Garg inequalities | macrorealism | PHYSICS, MULTIDISCIPLINARY | EXPERIMENTAL VIOLATION | PARTITIONS | TIME | QUANTUM-MECHANICS | BELL | Incompatibility | Theoretical physics | Quantum mechanics | Probability theory | Inequalities | Mathematical models | Probabilistic methods | Compatibility | Physics - Quantum Physics

Journal Article

Quantum Information Processing, ISSN 1570-0755, 7/2016, Volume 15, Issue 7, pp. 2993 - 3004

Leggett–Garg inequalities (LGI) are constraints on certain combinations of temporal correlations obtained by measuring one and the same system at two different...

Quantum Computing | Data Structures, Cryptology and Information Theory | Device-independent randomness | Leggett–Garg inequality | Mathematical Physics | Temporal correlation | Quantum Information Technology, Spintronics | Quantum Physics | Physics | Leggett-Garg inequality | HIDDEN-VARIABLES | QUANTUM SCIENCE & TECHNOLOGY | PHYSICS, MULTIDISCIPLINARY | QUANTUM | FLUX | PHYSICS, MATHEMATICAL | VIOLATION | MACROREALISM | REALISM | NONLOCALITY

Quantum Computing | Data Structures, Cryptology and Information Theory | Device-independent randomness | Leggett–Garg inequality | Mathematical Physics | Temporal correlation | Quantum Information Technology, Spintronics | Quantum Physics | Physics | Leggett-Garg inequality | HIDDEN-VARIABLES | QUANTUM SCIENCE & TECHNOLOGY | PHYSICS, MULTIDISCIPLINARY | QUANTUM | FLUX | PHYSICS, MATHEMATICAL | VIOLATION | MACROREALISM | REALISM | NONLOCALITY

Journal Article

Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 9/2013, Volume 8810, pp. 88100B - 88100B-10

Recent developments in space technology like micro-propulsion systems for drag-free control, thermal shielding, ultra-stable laser sources and stable optical...

Schrodinger cat | optical trapping | optomechanics | macrorealism | space | quantum physics | Nanospheres | Lasers | Interference | Holes | Mathematical models | Dielectrics | Deviation | Quantum theory | Physics - Quantum Physics

Schrodinger cat | optical trapping | optomechanics | macrorealism | space | quantum physics | Nanospheres | Lasers | Interference | Holes | Mathematical models | Dielectrics | Deviation | Quantum theory | Physics - Quantum Physics

Conference Proceeding

Physical Review A, ISSN 2469-9926, 10/2017, Volume 96, Issue 4

Ambiguous measurements do not reveal complete information about the system under test. Their quantum-mechanical counterparts are semiweak (or in the limit,...

FLUX | MACROSCOPIC REALISM | OPTICS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | MACROREALISM | Physics - Quantum Physics

FLUX | MACROSCOPIC REALISM | OPTICS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | MACROREALISM | Physics - Quantum Physics

Journal Article

Physical Review A, ISSN 2469-9926, 02/2016, Volume 93, Issue 2

The Leggett-Garg (LG) inequalities were proposed in order to assess whether sets of pairs of sequential measurements on a single quantum system can be...

HIDDEN-VARIABLES | REALISM | CONSISTENT HISTORIES | THEOREM | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | SYSTEMS | OPTICS | QUANTUM-MECHANICS | HILBERT-SPACE | LOGICAL REFORMULATION | MAGNETIC-FLUX | MACROREALISM

HIDDEN-VARIABLES | REALISM | CONSISTENT HISTORIES | THEOREM | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | SYSTEMS | OPTICS | QUANTUM-MECHANICS | HILBERT-SPACE | LOGICAL REFORMULATION | MAGNETIC-FLUX | MACROREALISM

Journal Article

QUANTUM SCIENCE AND TECHNOLOGY, ISSN 2058-9565, 07/2019, Volume 4, Issue 3, p. 3

In this work, we establish a connection between nonlinear electronic spectroscopy and the protocol for the non-disturbance condition, the non-fullfilment of...

coherence detection | quantum biology | QUANTUM SCIENCE & TECHNOLOGY | third order nonlinear optical processes | PHYSICS, MULTIDISCIPLINARY | COMPLEXES | nonlinear electronic spectroscopy | COHERENCE | macrorealism | Physics - Quantum Physics

coherence detection | quantum biology | QUANTUM SCIENCE & TECHNOLOGY | third order nonlinear optical processes | PHYSICS, MULTIDISCIPLINARY | COMPLEXES | nonlinear electronic spectroscopy | COHERENCE | macrorealism | Physics - Quantum Physics

Journal Article

2014

In this thesis I discuss the nature of ‘measurement’ in quantum theory. ‘Measurement’ is associated with several different processes: the gradual imprinting of...

Philosophy of physics | Weak value | Atomic and laser physics | Africa | weak measurement | Quantum theory (mathematics) | measurement | Condensed matter theory | Fisher information | quantum measurement | amplification | Quantum information processing | Theoretical physics | Leggett-Garg | parameter estimation | venality | Macrorealism | null result measurement | Quantum theory

Philosophy of physics | Weak value | Atomic and laser physics | Africa | weak measurement | Quantum theory (mathematics) | measurement | Condensed matter theory | Fisher information | quantum measurement | amplification | Quantum information processing | Theoretical physics | Leggett-Garg | parameter estimation | venality | Macrorealism | null result measurement | Quantum theory

Dissertation

Foundations of Physics Letters, ISSN 0894-9875, 10/2006, Volume 19, Issue 5, pp. 403 - 421

The complex quantum-classical relationship is reviewed and the inadequacy of quantum mechanical wavefunction description for the centre of mass motion of a...

Biophysics/Biomedical Physics | position and momentum distribution functions | Relativity and Cosmology | theory reduction | Mechanics | Condensed Matter | quantum-classical relationship | Physics, general | Physics | macrorealism | Quantum-classical relationship | Theory reduction | Macrorealism | Position and momentum distribution functions | EHRENFEST THEOREM | PHYSICS, MULTIDISCIPLINARY | CORRESPONDENCE PRINCIPLE

Biophysics/Biomedical Physics | position and momentum distribution functions | Relativity and Cosmology | theory reduction | Mechanics | Condensed Matter | quantum-classical relationship | Physics, general | Physics | macrorealism | Quantum-classical relationship | Theory reduction | Macrorealism | Position and momentum distribution functions | EHRENFEST THEOREM | PHYSICS, MULTIDISCIPLINARY | CORRESPONDENCE PRINCIPLE

Journal Article

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