Class information for:
Level 1: PARAMETRIC DOWN CONVERSION//SPONTANEOUS PARAMETRIC DOWN CONVERSION//QUANTUM PHOTON

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
140 3       PHYSICAL REVIEW A//QUANTUM INFORMATION PROCESSING//PHYSICS, MULTIDISCIPLINARY 66484
3 2             PHYSICAL REVIEW A//ENTANGLEMENT//QUANTUM INFORMATION PROCESSING 45999
1755 1                   PARAMETRIC DOWN CONVERSION//SPONTANEOUS PARAMETRIC DOWN CONVERSION//QUANTUM PHOTON 2532

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PARAMETRIC DOWN CONVERSION authKW 308687 2% 48% 52
2 SPONTANEOUS PARAMETRIC DOWN CONVERSION authKW 227549 1% 57% 32
3 QUANTUM PHOTON address 197724 2% 34% 47
4 QUANTUM IMAGING address 183115 1% 45% 33
5 PHOTON COMMUN COMP address 143202 2% 29% 40
6 SPONTANEOUS FOUR WAVE MIXING authKW 136901 0% 100% 11
7 TWIN PHOTONS authKW 95731 0% 77% 10
8 BOSON SAMPLING authKW 88500 0% 89% 8
9 BIPHOTON authKW 79649 0% 80% 8
10 PHOTON PAIR authKW 73673 1% 39% 15

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 65769 66% 0% 1680
2 Physics, Atomic, Molecular & Chemical 11152 27% 0% 674
3 Physics, Multidisciplinary 7963 26% 0% 670
4 Physics, Applied 535 12% 0% 310
5 Physics, Mathematical 41 2% 0% 47
6 Instruments & Instrumentation 41 2% 0% 55
7 Education, Scientific Disciplines 18 1% 0% 16
8 Computer Science, Theory & Methods 1 1% 0% 23
9 Physics, Particles & Fields -0 1% 0% 25
10 Multidisciplinary Sciences -0 0% 0% 6

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 QUANTUM PHOTON 197724 2% 34% 47
2 QUANTUM IMAGING 183115 1% 45% 33
3 PHOTON COMMUN COMP 143202 2% 29% 40
4 ULTRAHIGH BANDWIDTH DEVICES OPT SYST CUDOS 57197 2% 10% 45
5 INTEGRATED QUANTUM OPT 56887 0% 57% 8
6 JOINT OPT 56743 2% 11% 43
7 PL PHYS GRP 41322 2% 7% 46
8 FUNDAMENTAL SNEC TSUKUBA S 37337 0% 100% 3
9 LIFE NANOSCI LA S IENZA 34567 0% 56% 5
10 IPOS 29681 1% 9% 26

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PHYSICAL REVIEW A 64175 23% 1% 591
2 OPTICS EXPRESS 31536 12% 1% 301
3 OPTICA 17336 1% 5% 30
4 NATURE PHOTONICS 8728 1% 3% 28
5 OPTICS LETTERS 8515 6% 0% 145
6 JOURNAL OF MODERN OPTICS 8201 3% 1% 66
7 NEW JOURNAL OF PHYSICS 7715 3% 1% 76
8 PHYSICAL REVIEW LETTERS 6427 9% 0% 227
9 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 5365 3% 1% 70
10 OPTICS COMMUNICATIONS 3273 3% 0% 85

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PARAMETRIC DOWN CONVERSION 308687 2% 48% 52 Search PARAMETRIC+DOWN+CONVERSION Search PARAMETRIC+DOWN+CONVERSION
2 SPONTANEOUS PARAMETRIC DOWN CONVERSION 227549 1% 57% 32 Search SPONTANEOUS+PARAMETRIC+DOWN+CONVERSION Search SPONTANEOUS+PARAMETRIC+DOWN+CONVERSION
3 SPONTANEOUS FOUR WAVE MIXING 136901 0% 100% 11 Search SPONTANEOUS+FOUR+WAVE+MIXING Search SPONTANEOUS+FOUR+WAVE+MIXING
4 TWIN PHOTONS 95731 0% 77% 10 Search TWIN+PHOTONS Search TWIN+PHOTONS
5 BOSON SAMPLING 88500 0% 89% 8 Search BOSON+SAMPLING Search BOSON+SAMPLING
6 BIPHOTON 79649 0% 80% 8 Search BIPHOTON Search BIPHOTON
7 PHOTON PAIR 73673 1% 39% 15 Search PHOTON+PAIR Search PHOTON+PAIR
8 QUANTUM OPTICS 65628 3% 7% 76 Search QUANTUM+OPTICS Search QUANTUM+OPTICS
9 POLARIZATION ENTANGLEMENT 53094 0% 53% 8 Search POLARIZATION+ENTANGLEMENT Search POLARIZATION+ENTANGLEMENT
10 SPDC 53048 0% 47% 9 Search SPDC Search SPDC

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 12393 GHOST IMAGING//COLD ATOM PHYS CAS//ELECT INFORMAT TECHNOL SPACE SYST
2 6310 CROSS KERR NONLINEARITY//ENTANGLEMENT CONCENTRATION//ENTANGLEMENT PURIFICATION
3 4406 ARBEITSGRP THEORET QUANTENOPT//ARBEITSGRP QUANTENOPT//GAUSSIAN STATES
4 11641 NEUTRON INTERFEROMETRY//QUANTUM ERASER//WAVE PARTICLE DUALITY
5 5469 QUANTUM MEMORY//PHOTON ECHO//SPE UM
6 1046 BELL INEQUALITY//QUANTUM NONLOCALITY//BELLS THEOREM
7 21703 TOTAL INTERNAL REFLECTION QUASI PHASE MATCHING//BRAGG REFLECTION WAVEGUIDE//ISOTROPIC SEMICONDUCTORS
8 37848 QUANTUM DOT QUANTUM WELL QDQW//MULTIAPERTURE VISION//PHOTON NANOCRYSTAL
9 21689 POLARIZATION SQUEEZING//LIGHTWAVE TRANSMISS ENGN//STOKES OPERATORS
10 493 QUANTUM CRYPTOGRAPHY//QUANTUM KEY DISTRIBUTION//QUANTUM SECRET SHARING

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