Class information for:
Level 1: TRAPPED IONS//ION TRAP//ULTRACOLD ATOMS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2485 2231 31.7 73%


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
194 3       PHYSICAL REVIEW A//OPTICS//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 54094
146 2             PHYSICAL REVIEW A//ELECTROMAGNETICALLY INDUCED TRANSPARENCY//OPTICS 23279
2485 1                   TRAPPED IONS//ION TRAP//ULTRACOLD ATOMS 2231

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 TRAPPED IONS authKW 276558 3% 31% 65
2 ION TRAP authKW 143166 4% 13% 79
3 ULTRACOLD ATOMS address 137516 1% 36% 28
4 TIME FREQUENCY address 128161 3% 15% 64
5 QUANTENOPT QUANTENINFORMAT address 119282 2% 17% 52
6 DANISH FDN QUANTUM OPT address 97798 1% 31% 23
7 QUANTUM address 74336 1% 22% 25
8 ION STORAGE GRP address 70379 0% 86% 6
9 QUANTENINFORMAT VERARBEITUNG address 67350 1% 31% 16
10 QUANTOP address 65344 1% 16% 29

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 26760 46% 0% 1016
2 Physics, Atomic, Molecular & Chemical 18919 37% 0% 815
3 Physics, Multidisciplinary 12866 35% 0% 788
4 Physics, Applied 854 15% 0% 340
5 Physics, Mathematical 182 3% 0% 72
6 Instruments & Instrumentation 120 3% 0% 71
7 Spectroscopy 7 1% 0% 27
8 Computer Science, Theory & Methods 5 1% 0% 25
9 Education, Scientific Disciplines 3 0% 0% 9
10 Physics, Nuclear 3 1% 0% 26

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 ULTRACOLD ATOMS 137516 1% 36% 28
2 TIME FREQUENCY 128161 3% 15% 64
3 QUANTENOPT QUANTENINFORMAT 119282 2% 17% 52
4 DANISH FDN QUANTUM OPT 97798 1% 31% 23
5 QUANTUM 74336 1% 22% 25
6 ION STORAGE GRP 70379 0% 86% 6
7 QUANTENINFORMAT VERARBEITUNG 67350 1% 31% 16
8 QUANTOP 65344 1% 16% 29
9 FOCUS 39319 1% 9% 31
10 QUANTOP DANISH FDN QUANTUM OPT 34208 0% 50% 5

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 64083 25% 1% 556
2 APPLIED PHYSICS B-LASERS AND OPTICS 23639 5% 2% 114
3 NEW JOURNAL OF PHYSICS 18588 5% 1% 110
4 PHYSICAL REVIEW LETTERS 7492 10% 0% 231
5 QUANTUM INFORMATION & COMPUTATION 6326 1% 2% 20
6 JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 5997 4% 1% 85
7 APPLIED PHYSICS 4588 0% 3% 10
8 JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS 4270 1% 2% 18
9 JOURNAL OF MODERN OPTICS 3942 2% 1% 43
10 APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY 3441 1% 1% 20

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 TRAPPED IONS 276558 3% 31% 65 Search TRAPPED+IONS Search TRAPPED+IONS
2 ION TRAP 143166 4% 13% 79 Search ION+TRAP Search ION+TRAP
3 RF TRAP 61580 0% 75% 6 Search RF+TRAP Search RF+TRAP
4 PAUL TRAP 60821 1% 26% 17 Search PAUL+TRAP Search PAUL+TRAP
5 QUANTUM LOGIC OPERATION 54740 0% 100% 4 Search QUANTUM+LOGIC+OPERATION Search QUANTUM+LOGIC+OPERATION
6 SURFACE ELECTRODE TRAP 54740 0% 100% 4 Search SURFACE+ELECTRODE+TRAP Search SURFACE+ELECTRODE+TRAP
7 RF ION TRAP 49261 0% 60% 6 Search RF+ION+TRAP Search RF+ION+TRAP
8 COLD CHEMISTRY 47891 0% 50% 7 Search COLD+CHEMISTRY Search COLD+CHEMISTRY
9 MG ION 43791 0% 80% 4 Search MG+ION Search MG+ION
10 COLLISION COOLING 41055 0% 100% 3 Search COLLISION+COOLING Search COLLISION+COOLING

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 BROWNNUTT, M , KUMPH, M , RABL, P , BLATT, R , (2015) ION-TRAP MEASUREMENTS OF ELECTRIC-FIELD NOISE NEAR SURFACES.REVIEWS OF MODERN PHYSICS. VOL. 87. ISSUE 4. P. - 130 73% 16
2 WINELAND, DJ , LEIBFRIED, D , (2011) QUANTUM INFORMATION PROCESSING AND METROLOGY WITH TRAPPED IONS.LASER PHYSICS LETTERS. VOL. 8. ISSUE 3. P. 175 -188 138 75% 48
3 SCHNEIDER, C , PORRAS, D , SCHAETZ, T , (2012) EXPERIMENTAL QUANTUM SIMULATIONS OF MANY-BODY PHYSICS WITH TRAPPED IONS.REPORTS ON PROGRESS IN PHYSICS. VOL. 75. ISSUE 2. P. - 105 65% 114
4 HAFFNER, H , ROOS, CF , BLATT, R , (2008) QUANTUM COMPUTING WITH TRAPPED IONS.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 469. ISSUE 4. P. 155 -203 116 59% 291
5 ELTONY, AM , GANGLOFF, D , SHI, ML , BYLINSKII, A , VULETIC, V , CHUANG, IL , (2016) TECHNOLOGIES FOR TRAPPED-ION QUANTUM INFORMATION SYSTEMS.QUANTUM INFORMATION PROCESSING. VOL. 15. ISSUE 12. P. 5351 -5383 108 69% 0
6 WINELAND, DJ , (2013) NOBEL LECTURE: SUPERPOSITION, ENTANGLEMENT, AND RAISING SCHRODINGER'S CAT.REVIEWS OF MODERN PHYSICS. VOL. 85. ISSUE 3. P. 1103-1114 80 67% 85
7 WINELAND, DJ , (2009) QUANTUM INFORMATION PROCESSING AND QUANTUM CONTROL WITH TRAPPED ATOMIC IONS.PHYSICA SCRIPTA. VOL. T137. ISSUE . P. - 100 71% 6
8 DREWSEN, M , (2015) ION COULOMB CRYSTALS.PHYSICA B-CONDENSED MATTER. VOL. 460. ISSUE . P. 105 -113 81 69% 3
9 BLATT, R , ROOS, CF , (2012) QUANTUM SIMULATIONS WITH TRAPPED IONS.NATURE PHYSICS. VOL. 8. ISSUE 4. P. 277 -284 56 53% 312
10 BLATT, R , WINELAND, D , (2008) ENTANGLED STATES OF TRAPPED ATOMIC IONS.NATURE. VOL. 453. ISSUE 7198. P. 1008 -1015 55 65% 435

Classes with closest relation at Level 1


Rank Class id link
1 4817 ATOMIC CLOCKS//OPTICAL FREQUENCY STANDARD//LNE SYRTE
2 7112 QUADRUPOLE ION TRAP//QUADRUPOLE MASS FILTER//RECTILINEAR ION TRAP
3 2484 ATOM LITHOGRAPHY//MAGNETO OPTICAL TRAP//LASER COOLING
4 21547 ENHANCEMENT CAVITY//NONLINEAR OPTIC CRYSTAL//EXTERNAL ENHANCEMENT CAVITY
5 2260 QUANTUM CIRCUITS//REVERSIBLE LOGIC//QUANTUM COMPUTATION
6 206 JAYNES CUMMINGS MODEL//MICROMASER//ATOMIC INVERSION
7 5604 QUANTUM CODES//QUANTUM ERROR CORRECTION//QUANTUM ERROR CORRECTING CODES
8 22364 RANDOMIZED BENCHMARKING//QUANTUM PROCESS TOMOGRAPHY//QUANTUM INFORMAT CONTROL
9 37349 POST BUCKLED//CAVITY ENHANCED DETECTION//ENS PSLCNRSCDF
10 14771 CAVITY COOLING//SUPERRADIANT SCATTERING//HIGH FINESSE OPTICAL CAVITY

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