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

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2001 2392 28.5 78%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
163 3       PHYSICAL REVIEW A//ENTANGLEMENT//QUANTUM INFORMATION PROCESSING 60613
68 2             PHYSICAL REVIEW A//QUANTUM INFORMATION PROCESSING//QUANTUM CRYPTOGRAPHY 28539
2001 1                   PARAMETRIC DOWN CONVERSION//QUANTUM IMAGING//SPONTANEOUS PARAMETRIC DOWN CONVERSION 2392

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PARAMETRIC DOWN CONVERSION authKW 335030 2% 50% 52
2 QUANTUM IMAGING address 289909 2% 55% 41
3 SPONTANEOUS PARAMETRIC DOWN CONVERSION authKW 246581 1% 60% 32
4 QUANTUM PHOTON address 194277 2% 34% 45
5 TWIN PHOTONS authKW 118798 0% 85% 11
6 PHOTON COMMUN COMP address 106869 1% 25% 34
7 SPONTANEOUS FOUR WAVE MIXING authKW 93985 0% 82% 9
8 BOSON SAMPLING authKW 78177 0% 88% 7
9 PHYSICAL REVIEW A journal 75098 26% 1% 623
10 QUANTUM OPTICS authKW 72137 3% 7% 77

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Optics 63272 67% 0% 1599
2 Physics, Atomic, Molecular & Chemical 13333 30% 0% 715
3 Physics, Multidisciplinary 7295 26% 0% 627
4 Physics, Applied 334 11% 0% 254
5 Physics, Mathematical 85 2% 0% 57
6 Instruments & Instrumentation 27 2% 0% 47
7 Computer Science, Theory & Methods 10 1% 0% 31
8 Physics, Particles & Fields 3 1% 0% 33
9 Spectroscopy 2 1% 0% 23
10 Materials Science, Characterization, Testing 0 0% 0% 4

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 QUANTUM IMAGING 289909 2% 55% 41
2 QUANTUM PHOTON 194277 2% 34% 45
3 PHOTON COMMUN COMP 106869 1% 25% 34
4 JOINT OPT 57805 2% 11% 42
5 ULTRAHIGH BANDWIDTH DEVICES OPT SYST CUDOS 49496 2% 10% 40
6 CNR INFM LUXOR 38291 0% 100% 3
7 FUNDAMENTAL SNEC TSUKUBA S 38291 0% 100% 3
8 LIFE NANOSCI LA S IENZA 35451 0% 56% 5
9 PL PHYS GRP 34198 2% 7% 41
10 MQ PHOTON 29119 1% 8% 27

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PHYSICAL REVIEW A 75098 26% 1% 623
2 OPTICS EXPRESS 25120 11% 1% 259
3 OPTICA 13195 1% 5% 23
4 JOURNAL OF MODERN OPTICS 11584 3% 1% 76
5 NEW JOURNAL OF PHYSICS 6568 3% 1% 68
6 PHYSICAL REVIEW LETTERS 5826 9% 0% 212
7 OPTICS LETTERS 5382 5% 0% 113
8 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 5149 3% 1% 67
9 INTERNATIONAL JOURNAL OF QUANTUM INFORMATION 5000 1% 2% 22
10 NATURE PHOTONICS 3911 1% 2% 18

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 PARAMETRIC DOWN CONVERSION 335030 2% 50% 52 Search PARAMETRIC+DOWN+CONVERSION Search PARAMETRIC+DOWN+CONVERSION
2 SPONTANEOUS PARAMETRIC DOWN CONVERSION 246581 1% 60% 32 Search SPONTANEOUS+PARAMETRIC+DOWN+CONVERSION Search SPONTANEOUS+PARAMETRIC+DOWN+CONVERSION
3 TWIN PHOTONS 118798 0% 85% 11 Search TWIN+PHOTONS Search TWIN+PHOTONS
4 SPONTANEOUS FOUR WAVE MIXING 93985 0% 82% 9 Search SPONTANEOUS+FOUR+WAVE+MIXING Search SPONTANEOUS+FOUR+WAVE+MIXING
5 BOSON SAMPLING 78177 0% 88% 7 Search BOSON+SAMPLING Search BOSON+SAMPLING
6 QUANTUM OPTICS 72137 3% 7% 77 Search QUANTUM+OPTICS Search QUANTUM+OPTICS
7 PHOTON PAIR 71461 1% 40% 14 Search PHOTON+PAIR Search PHOTON+PAIR
8 INTEGRATED QUANTUM PHOTONICS 63819 0% 100% 5 Search INTEGRATED+QUANTUM+PHOTONICS Search INTEGRATED+QUANTUM+PHOTONICS
9 TWO PHOTON INTERFERENCE 49222 0% 43% 9 Search TWO+PHOTON+INTERFERENCE Search TWO+PHOTON+INTERFERENCE
10 BIPHOTON 45945 0% 60% 6 Search BIPHOTON Search BIPHOTON

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.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 PERINA, J , (2014) SPONTANEOUS PARAMETRIC DOWN-CONVERSION IN NONLINEAR LAYERED STRUCTURES.PROGRESS IN OPTICS, VOL 59. VOL. 59. ISSUE . P. 89 -158 77 70% 2
2 TORRES, JP , BANASZEK, K , WALMSLEY, IA , (2011) ENGINEERING NONLINEAR OPTIC SOURCES OF PHOTONIC ENTANGLEMENT.PROGRESS IN OPTICS, VOL 56. VOL. 56. ISSUE . P. 227 -331 97 55% 22
3 RAMIREZ-ALARCON, R , CRUZ-RAMIREZ, H , U'REN, AB , (2013) EFFECTS OF CRYSTAL LENGTH ON THE ANGULAR SPECTRUM OF SPONTANEOUS PARAMETRIC DOWNCONVERSION PHOTON PAIRS.LASER PHYSICS. VOL. 23. ISSUE 5. P. - 53 85% 12
4 CHEKHOVA, M , (2011) POLARIZATION AND SPECTRAL PROPERTIES OF BIPHOTONS.PROGRESS IN OPTICS, VOL 56. VOL. 56. ISSUE . P. 187 -226 64 74% 3
5 MAHOU, P , COHEN, O , LUNDEEN, JS , WALMSLEY, IA , SMITH, BJ , (2009) PHOTON PAIR GENERATION IN BIREFRINGENT OPTICAL FIBERS.OPTICS EXPRESS. VOL. 17. ISSUE 26. P. 23589 -23602 52 83% 35
6 DEZFOULI, MK , DIGNAM, MM , STEEL, MJ , SIPE, JE , (2014) HEISENBERG TREATMENT OF PAIR GENERATION IN LOSSY COUPLED-CAVITY SYSTEMS.PHYSICAL REVIEW A. VOL. 90. ISSUE 4. P. - 54 76% 1
7 TICHY, MC , (2015) SAMPLING OF PARTIALLY DISTINGUISHABLE BOSONS AND THE RELATION TO THE MULTIDIMENSIONAL PERMANENT.PHYSICAL REVIEW A. VOL. 91. ISSUE 2. P. - 36 86% 14
8 JEONG, YC , HONG, KH , KIM, YH , (2016) BRIGHT SOURCE OF POLARIZATION-ENTANGLED PHOTONS USING A PPKTP PUMPED BY A BROADBAND MULTI-MODE DIODE LASER.OPTICS EXPRESS. VOL. 24. ISSUE 2. P. 1165 -1174 37 90% 1
9 JIANG, WC , LU, XY , ZHANG, JD , PAINTER, O , LIN, Q , (2015) SILICON-CHIP SOURCE OF BRIGHT PHOTON PAIRS.OPTICS EXPRESS. VOL. 23. ISSUE 16. P. 20884 -20904 41 75% 10
10 SALEH, BEA , ABOURADDY, AF , SIRGIENKO, AV , TEICH, MC , (2000) DUALITY BETWEEN PARTIAL COHERENCE AND PARTIAL ENTANGLEMENT.PHYSICAL REVIEW A. VOL. 62. ISSUE 4. P. - 53 80% 136

Classes with closest relation at Level 1


Rank Class id link
1 17249 GHOST IMAGING//COLD ATOM PHYS CAS//THERMAL LIGHT
2 14757 SUPERCONDUCTING SINGLE PHOTON DETECTORS//SINGLE PHOTON DETECTOR//SUPERCONDUCTING NANOWIRE SINGLE PHOTON DETECTOR
3 7159 QUANTUM MEMORY//PL PHYS GRP//UPR 3321
4 36293 CLASSICAL ENTANGLEMENT//CLASSICAL LIGHT//ACOUSTIC LORENTZ INVARIANCE
5 4790 CROSS KERR NONLINEARITY//ENTANGLEMENT CONCENTRATION//CLUSTER STATE
6 14629 QUANTUM ERASER//WAVE PARTICLE DUALITY//WHICH WAY INFORMATION
7 3794 QUANTUM KEY DISTRIBUTION//QUANTUM CRYPTOGRAPHY//DECOY STATE
8 6097 SPIN SQUEEZING//QUANTUM FISHER INFORMATION//QUANTUM METROLOGY
9 845 BELL INEQUALITY//BELLS THEOREM//QUANTUM NONLOCALITY
10 1361 STATE QUANTUM OPT QUANTUM OPT DEVICES//ENTANGLED COHERENT STATE//GAUSSIAN STATES

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