Electric trapping and cooling of polyatomic molecules:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Schlagworte: | |
| Online-Zugang: | Volltext https://nbn-resolving.org/urn:nbn:de:bvb:91-diss-20131121-1172964-0-5 Inhaltsverzeichnis |
| Beschreibung: | 112 S. Ill., graph. Darst. |
Internformat
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| 245 | 1 | 0 | |a Electric trapping and cooling of polyatomic molecules |c Martin G. W. Zeppenfeld |
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Datensatz im Suchindex
| _version_ | 1804151660839174144 |
|---|---|
| adam_text | CONTENTS
1 INTRODUCTION 3
1.1 APPLICATIONS OF COLD AND ULTRACOLD MOLECULES 5
1.1.1 COLD AND ULTRACOLD CHEMISTRY 5
1.1.2 QUANTUM INFORMATION PROCESSING 6
1.1.3 PRECISION MEASUREMENTS 7
1.2 METHODS FOR PRODUCING COLD AND ULTRACOLD MOLECULES 7
1.2.1 INDIRECT COOLING METHODS 7
1.2.2 DIRECT COOLING METHODS 8
1.2.3 EXTENDING DIRECT COOLING TO ULTRACOLD TEMPERATURES 10
1.3 OUTLINE OF THIS THESIS 12
2 OVERVIEW OF OPTOELECTRICAL COOLING 13
3 DESIGN OF THE MICROSTRUCTURED ELECTRIC TRAP 24
3.1 INTRODUCTION 24
3.2 POTENTIAL LOSS MECHANISMS IN AN ELECTRIC TRAP 25
3.2.1 COLLISIONS WITH BACKGROUND GAS 25
3.2.2 HOLES IN THE TRAPPING FIELDS 26
3.2.3 HEATING MECHANISMS 28
3.2.4 LOSSES VIA UNTRAPPED STATES 29
3.2.4.1 BLACKBODY RADIATION 29
3.2.4.2 MAJORANA TRANSITIONS 32
3.2.4.3 INELASTIC COLLISIONS 34
3.3 OVERVIEW OF THE TRAP DESIGN 34
3.3.1 ESTABLISHING THE RATIO OF THE TRAP DIMENSIONS 35
3.3.2 ESTABLISHING THE OVERALL SCALE OF THE TRAP DIMENSIONS 37
3.4 TRANSVERSE CONFINEMENT VIA A PERIMETER ELECTRODE 39
3.4.1 SHAPE OF THE PERIMETER ELECTRODE 40
3.4.1.1 DEFINITION OF TRAP DEPTH UNITS (TDU) TO ACCOUNT FOR SCALING
OF THE TRAP VOLTAGES 42
3.4.2 PERIMETER ELECTRODE AT THE CORNERS OF THE TRAP 42
3.5 CONNECTING THE TRAP TO A QUADRUPOLE GUIDE 43
3.5.1 OPTIMIZED DEPTH FOR A CONNECTING GUIDE 43
1
HTTP://D-NB.INFO/1048244717
3.5.2 REALIZING A CAPACITOR-PLATE-BASED QUADRUPOLE GUIDE 45
3.5.3 TRANSITION FROM THE TRAP TO THE CAPACITOR-PLATE-BASED GUIDE 46
3.5.4 MATCHING A CAPACITOR-PLATE-BASED GUIDE TO A STANDARD QUADRUPOLE .
47
3.5.5 AN ALTERNATIVE APPROACH TO THE TRAP-GUIDE TRANSITION 49
3.6 DESIGN OF THE TRAP MICROSTRUCTURE 49
3.6.1 ANALYTIC DESCRIPTION OF THE ELECTRIC FIELDS ABOVE A PERIODIC
MICROSTRUC
TURE 50
3.6.1.1 MICROSTRUCTURE BOUNDARY CONDITIONS 51
3.6.1.2 SERIES EQUATIONS FOR THE POTENTIAL COEFFICIENTS 53
3.6.1.3 AN UNSATISFACTORY NUMERICAL APPROACH 54
3.6.1.4 GENERAL SOLUTION VIA INTEGRAL EQUATIONS 55
3.6.1.5 SPECIFIC SOLUTION VIA COMPLEX ANALYTIC FUNCTIONS 59
3.6.2 GENERAL MICROSTRUCTURE DESIGN CONSIDERATIONS 62
3.6.3 MAINTAINING A STRONG MICROSTRUCTURE CONFINEMENT UNDER THE PERIME
TER ELECTRODE 63
3.6.4 MINIMIZING ELECTRIC FIELD ZEROS INSIDE THE TRAP 65
3.6.4.1 DESIGN.OF THE TAPERED MICROSTRUCTURE 67
3.6.4.2 MAINTAINING HOMOGENEOUS FIELDS WITH A TAPERED MICROSTRUC
TURE 69
3.6.5 ELIMINATING HOLES BETWEEN.THE PERIMETER ELECTRODE AND THE
MICROSTRUC
TURE 70
3.6.6 INTERFACE BETWEEN THE TWO HALVES OF THE TRAP 73
3.6.7 OVERALL DESIGN OF THE TRAP MICROSTRUCTURE 74
3.6.8 ELECTRIC FIELDS FROM THE COMBINED PERIMETER AND MICROSTRUCTURE
ELEC
TRODES 78
3.7 POSSIBILITIES FOR IMPROVING THE TRAP 80
4 EXPERIMENTAL RESULTS 83
5 OUTLOOK 97
DANKSAGUNG 99
LIST OF PUBLICATIONS 101
BIBLIOGRAPHY 103
2
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| spelling | Zeppenfeld, Martin G. W. Verfasser aut Electric trapping and cooling of polyatomic molecules Martin G. W. Zeppenfeld 2013 112 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier München, Techn. Univ., Diss., 2013 Teilchenfalle (DE-588)4349942-9 gnd rswk-swf Molekül (DE-588)4039972-2 gnd rswk-swf Tieftemperatur (DE-588)4134801-1 gnd rswk-swf Kühlung (DE-588)4132435-3 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Molekül (DE-588)4039972-2 s Teilchenfalle (DE-588)4349942-9 s Kühlung (DE-588)4132435-3 s Tieftemperatur (DE-588)4134801-1 s DE-604 Erscheint auch als Online-Ausgabe urn:nbn:de:bvb:91-diss-20131121-1172964-0-5 http://mediatum.ub.tum.de/node?id=1172964 Verlag kostenfrei Volltext https://nbn-resolving.org/urn:nbn:de:bvb:91-diss-20131121-1172964-0-5 Resolving-System DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026997238&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Zeppenfeld, Martin G. W. Electric trapping and cooling of polyatomic molecules Teilchenfalle (DE-588)4349942-9 gnd Molekül (DE-588)4039972-2 gnd Tieftemperatur (DE-588)4134801-1 gnd Kühlung (DE-588)4132435-3 gnd |
| subject_GND | (DE-588)4349942-9 (DE-588)4039972-2 (DE-588)4134801-1 (DE-588)4132435-3 (DE-588)4113937-9 |
| title | Electric trapping and cooling of polyatomic molecules |
| title_auth | Electric trapping and cooling of polyatomic molecules |
| title_exact_search | Electric trapping and cooling of polyatomic molecules |
| title_full | Electric trapping and cooling of polyatomic molecules Martin G. W. Zeppenfeld |
| title_fullStr | Electric trapping and cooling of polyatomic molecules Martin G. W. Zeppenfeld |
| title_full_unstemmed | Electric trapping and cooling of polyatomic molecules Martin G. W. Zeppenfeld |
| title_short | Electric trapping and cooling of polyatomic molecules |
| title_sort | electric trapping and cooling of polyatomic molecules |
| topic | Teilchenfalle (DE-588)4349942-9 gnd Molekül (DE-588)4039972-2 gnd Tieftemperatur (DE-588)4134801-1 gnd Kühlung (DE-588)4132435-3 gnd |
| topic_facet | Teilchenfalle Molekül Tieftemperatur Kühlung Hochschulschrift |
| url | http://mediatum.ub.tum.de/node?id=1172964 https://nbn-resolving.org/urn:nbn:de:bvb:91-diss-20131121-1172964-0-5 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026997238&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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