{"id":"https://openalex.org/W7130308452","doi":"https://doi.org/10.3390/technologies14020128","title":"Optimizing Interface Dielectric Loss in Superconducting Coplanar Waveguide Resonators for Improved Quantum Circuit Coherence","display_name":"Optimizing Interface Dielectric Loss in Superconducting Coplanar Waveguide Resonators for Improved Quantum Circuit Coherence","publication_year":2026,"publication_date":"2026-02-18","ids":{"openalex":"https://openalex.org/W7130308452","doi":"https://doi.org/10.3390/technologies14020128"},"language":"en","primary_location":{"id":"doi:10.3390/technologies14020128","doi":"https://doi.org/10.3390/technologies14020128","is_oa":true,"landing_page_url":"https://doi.org/10.3390/technologies14020128","pdf_url":"https://www.mdpi.com/2227-7080/14/2/128/pdf?version=1771403838","source":{"id":"https://openalex.org/S2738348041","display_name":"Technologies","issn_l":"2227-7080","issn":["2227-7080"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Technologies","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2227-7080/14/2/128/pdf?version=1771403838","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Omar A. Saleh","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I134085113","display_name":"King Fahd University of Petroleum and Minerals","ror":"https://ror.org/03yez3163","country_code":"SA","type":"education","lineage":["https://openalex.org/I134085113"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Omar A. Saleh","raw_affiliation_strings":["Department of Physics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010568259","display_name":"Saleem G. Rao","orcid":"https://orcid.org/0000-0002-3563-8800","observed_orcids":["https://orcid.org/0000-0002-3563-8800"]},"institutions":[{"id":"https://openalex.org/I134085113","display_name":"King Fahd University of Petroleum and Minerals","ror":"https://ror.org/03yez3163","country_code":"SA","type":"education","lineage":["https://openalex.org/I134085113"]}],"countries":["SA"],"is_corresponding":true,"raw_author_name":"Saleem G. Rao","raw_affiliation_strings":["Department of Physics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","Interdisciplinary Research Center-Advanced Quantum Computing, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia"],"raw_orcid":"https://orcid.org/0000-0002-3563-8800","affiliations":[{"raw_affiliation_string":"Department of Physics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]},{"raw_affiliation_string":"Interdisciplinary Research Center-Advanced Quantum Computing, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012021687","display_name":"Mohammed Alghadeer","orcid":"https://orcid.org/0000-0003-1763-0757","observed_orcids":["https://orcid.org/0000-0003-1763-0757"]},"institutions":[{"id":"https://openalex.org/I40120149","display_name":"University of Oxford","ror":"https://ror.org/052gg0110","country_code":"GB","type":"education","lineage":["https://openalex.org/I40120149"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Mohammed Alghadeer","raw_affiliation_strings":["Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK","institution_ids":["https://openalex.org/I40120149"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031805870","display_name":"Ahmed Abdelmottaleb Omar","orcid":"https://orcid.org/0000-0002-0397-0198","observed_orcids":["https://orcid.org/0000-0002-0397-0198"]},"institutions":[{"id":"https://openalex.org/I134085113","display_name":"King Fahd University of Petroleum and Minerals","ror":"https://ror.org/03yez3163","country_code":"SA","type":"education","lineage":["https://openalex.org/I134085113"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Ahmed A. Omar","raw_affiliation_strings":["Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia"],"raw_orcid":"https://orcid.org/0000-0002-0397-0198","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037740657","display_name":"Muhamad Felemban","orcid":"https://orcid.org/0000-0001-6414-3391","observed_orcids":["https://orcid.org/0000-0001-6414-3391"]},"institutions":[{"id":"https://openalex.org/I134085113","display_name":"King Fahd University of Petroleum and Minerals","ror":"https://ror.org/03yez3163","country_code":"SA","type":"education","lineage":["https://openalex.org/I134085113"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Muhamad Felemban","raw_affiliation_strings":["Computer Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","Interdisciplinary Research Center-Advanced Quantum Computing, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia"],"raw_orcid":"https://orcid.org/0000-0001-6414-3391","affiliations":[{"raw_affiliation_string":"Computer Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]},{"raw_affiliation_string":"Interdisciplinary Research Center-Advanced Quantum Computing, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia","institution_ids":["https://openalex.org/I134085113"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5010568259"],"corresponding_institution_ids":["https://openalex.org/I134085113"],"apc_list":{"value":1600,"currency":"CHF","value_usd":1930},"apc_paid":{"value":1600,"currency":"CHF","value_usd":1930},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10561237,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"14","issue":"2","first_page":"128","last_page":"128"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10020","display_name":"Quantum Information and Cryptography","score":0.875,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10020","display_name":"Quantum Information and Cryptography","score":0.875,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11803","display_name":"Superconducting and THz Device Technology","score":0.0982000008225441,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11449","display_name":"Mechanical and Optical Resonators","score":0.00430000014603138,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/superconducting-coplanar-waveguide-resonators","display_name":"superconducting coplanar waveguide resonators","score":0.9539999961853027},{"id":"https://openalex.org/keywords/dielectric-loss","display_name":"dielectric loss","score":0.7730000019073486},{"id":"https://openalex.org/keywords/two-level-system","display_name":"two-level system","score":0.7870000004768372},{"id":"https://openalex.org/keywords/interface-engineering","display_name":"interface engineering","score":0.753000020980835},{"id":"https://openalex.org/keywords/quality-factor","display_name":"quality factor","score":0.8579999804496765},{"id":"https://openalex.org/keywords/quantum-coherence","display_name":"quantum coherence","score":0.5619999766349792},{"id":"https://openalex.org/keywords/one-photon-excitation","display_name":"one-photon excitation","score":0.6629999876022339},{"id":"https://openalex.org/keywords/resonator-design","display_name":"resonator design","score":0.6790000200271606},{"id":"https://openalex.org/keywords/superconducting-quantum-computing","display_name":"superconducting quantum computing","score":0.6700000166893005}],"concepts":[{"id":"https://openalex.org/C97126364","wikidata":"https://www.wikidata.org/wiki/Q349669","display_name":"Resonator","level":2,"score":0.7839999794960022},{"id":"https://openalex.org/C3736036","wikidata":"https://www.wikidata.org/wiki/Q15525941","display_name":"Coplanar waveguide","level":3,"score":0.6103000044822693},{"id":"https://openalex.org/C135402231","wikidata":"https://www.wikidata.org/wiki/Q898440","display_name":"Dissipation","level":2,"score":0.6050000190734863},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.5728999972343445},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5679000020027161},{"id":"https://openalex.org/C113843644","wikidata":"https://www.wikidata.org/wiki/Q901882","display_name":"Interface (matter)","level":4,"score":0.5468999743461609},{"id":"https://openalex.org/C2781181686","wikidata":"https://www.wikidata.org/wiki/Q4226068","display_name":"Coherence (philosophical gambling strategy)","level":2,"score":0.5406000018119812},{"id":"https://openalex.org/C187725362","wikidata":"https://www.wikidata.org/wiki/Q830521","display_name":"Q factor","level":3,"score":0.48579999804496765},{"id":"https://openalex.org/C100460472","wikidata":"https://www.wikidata.org/wiki/Q2368605","display_name":"Etching (microfabrication)","level":3,"score":0.48410001397132874},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.45399999618530273},{"id":"https://openalex.org/C97274863","wikidata":"https://www.wikidata.org/wiki/Q1040795","display_name":"Dissipation factor","level":3,"score":0.4205999970436096},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.4172999858856201},{"id":"https://openalex.org/C133386390","wikidata":"https://www.wikidata.org/wiki/Q184996","display_name":"Dielectric","level":2,"score":0.4146000146865845},{"id":"https://openalex.org/C200687136","wikidata":"https://www.wikidata.org/wiki/Q11233438","display_name":"Waveguide","level":2,"score":0.39989998936653137},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.3928999900817871},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.36000001430511475},{"id":"https://openalex.org/C165021410","wikidata":"https://www.wikidata.org/wiki/Q55564","display_name":"Lossy compression","level":2,"score":0.35670000314712524},{"id":"https://openalex.org/C58053490","wikidata":"https://www.wikidata.org/wiki/Q176555","display_name":"Quantum computer","level":3,"score":0.319599986076355},{"id":"https://openalex.org/C139210041","wikidata":"https://www.wikidata.org/wiki/Q2145840","display_name":"Resonance (particle physics)","level":2,"score":0.30250000953674316},{"id":"https://openalex.org/C54101563","wikidata":"https://www.wikidata.org/wiki/Q124131","display_name":"Superconductivity","level":2,"score":0.30140000581741333},{"id":"https://openalex.org/C186397771","wikidata":"https://www.wikidata.org/wiki/Q5759014","display_name":"Microwave cavity","level":3,"score":0.298799991607666},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2903999984264374},{"id":"https://openalex.org/C83581075","wikidata":"https://www.wikidata.org/wiki/Q1361503","display_name":"Excitation","level":2,"score":0.2799000144004822},{"id":"https://openalex.org/C52192207","wikidata":"https://www.wikidata.org/wiki/Q5322","display_name":"Capacitor","level":3,"score":0.27300000190734863},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.272599995136261},{"id":"https://openalex.org/C91066073","wikidata":"https://www.wikidata.org/wiki/Q1417868","display_name":"Dielectric loss","level":3,"score":0.2644999921321869},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.2547999918460846}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3390/technologies14020128","doi":"https://doi.org/10.3390/technologies14020128","is_oa":true,"landing_page_url":"https://doi.org/10.3390/technologies14020128","pdf_url":"https://www.mdpi.com/2227-7080/14/2/128/pdf?version=1771403838","source":{"id":"https://openalex.org/S2738348041","display_name":"Technologies","issn_l":"2227-7080","issn":["2227-7080"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Technologies","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:82c7d0378cf04b7cb62d845c2e911b37","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/82c7d0378cf04b7cb62d845c2e911b37","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Technologies, Vol 14, Iss 2, p 128 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/technologies14020128","doi":"https://doi.org/10.3390/technologies14020128","is_oa":true,"landing_page_url":"https://doi.org/10.3390/technologies14020128","pdf_url":"https://www.mdpi.com/2227-7080/14/2/128/pdf?version=1771403838","source":{"id":"https://openalex.org/S2738348041","display_name":"Technologies","issn_l":"2227-7080","issn":["2227-7080"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Technologies","raw_type":"journal-article"},"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G4078569325","display_name":null,"funder_award_id":"INSS2408","funder_id":"https://openalex.org/F4320322323","funder_display_name":"King Fahd University of Petroleum and Minerals"}],"funders":[{"id":"https://openalex.org/F4320322323","display_name":"King Fahd University of Petroleum and Minerals","ror":"https://ror.org/03yez3163"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7130308452.pdf","grobid_xml":"https://content.openalex.org/works/W7130308452.grobid-xml"},"referenced_works_count":55,"referenced_works":["https://openalex.org/W1970528349","https://openalex.org/W1989838827","https://openalex.org/W2012470259","https://openalex.org/W2022881716","https://openalex.org/W2049424653","https://openalex.org/W2055598707","https://openalex.org/W2066225814","https://openalex.org/W2073049731","https://openalex.org/W2090545133","https://openalex.org/W2102498367","https://openalex.org/W2103912183","https://openalex.org/W2110551800","https://openalex.org/W2117877557","https://openalex.org/W2132664008","https://openalex.org/W2133538348","https://openalex.org/W2138318138","https://openalex.org/W2141221481","https://openalex.org/W2166806803","https://openalex.org/W2276005390","https://openalex.org/W2289811323","https://openalex.org/W2463723514","https://openalex.org/W2566139428","https://openalex.org/W2611050590","https://openalex.org/W2758620562","https://openalex.org/W2883947141","https://openalex.org/W2888864094","https://openalex.org/W2949253647","https://openalex.org/W2950216490","https://openalex.org/W2974838485","https://openalex.org/W2991126769","https://openalex.org/W2995027688","https://openalex.org/W3025699594","https://openalex.org/W3033583284","https://openalex.org/W3187358605","https://openalex.org/W3200198081","https://openalex.org/W4206124997","https://openalex.org/W4221042670","https://openalex.org/W4224226515","https://openalex.org/W4285726038","https://openalex.org/W4312210035","https://openalex.org/W4318988367","https://openalex.org/W4384559425","https://openalex.org/W4386890152","https://openalex.org/W4390696433","https://openalex.org/W4395676920","https://openalex.org/W4401924620","https://openalex.org/W4403128769","https://openalex.org/W4404198125","https://openalex.org/W4408190032","https://openalex.org/W4409810624","https://openalex.org/W4409877770","https://openalex.org/W4410358245","https://openalex.org/W4411016450","https://openalex.org/W4411225084","https://openalex.org/W4417167374"],"related_works":[],"abstract_inverted_index":{"Superconducting":[0],"quantum":[1,163],"computing":[2],"systems,":[3],"including":[4],"coplanar":[5],"waveguide":[6],"(CPW)":[7],"resonators":[8,27],"and":[9,23,158],"qubits,":[10],"are":[11],"highly":[12],"susceptible":[13],"to":[14,59,88,125],"energy":[15],"dissipation":[16,106],"from":[17],"two-level":[18],"systems":[19],"(TLS)":[20],"within":[21],"bulk":[22],"interfacial":[24],"dielectrics.":[25],"CPW":[26],"serve":[28],"as":[29],"an":[30],"ideal":[31],"platform":[32],"for":[33,141,150,154],"characterizing":[34],"these":[35],"material":[36,101],"losses":[37,73],"at":[38,74],"the":[39,75,81,95,104,121,126],"single-photon":[40],"excitation":[41],"level.":[42],"Building":[43],"on":[44,120],"recent":[45],"experimental":[46,135],"evidence":[47],"that":[48,71,111],"interface":[49,66,78,97],"engineering":[50],"can":[51,79],"mitigate":[52],"TLS":[53,151],"losses,":[54],"this":[55],"study":[56],"employs":[57],"simulations":[58],"evaluate":[60],"resonator":[61,143],"quality":[62,83,122],"factors":[63],"across":[64],"various":[65],"modifications.":[67],"Our":[68],"results":[69,131],"demonstrate":[70],"reducing":[72],"substrate\u2013air":[76],"(SA)":[77],"increase":[80],"internal":[82],"factor":[84,123],"Qi":[85],"by":[86],"up":[87],"three":[89],"orders":[90],"of":[91],"magnitude.":[92],"While":[93],"etching":[94],"SA":[96,127],"also":[98],"enhances":[99],"Qi,":[100],"loss":[102],"remains":[103],"dominant":[105],"mechanism.":[107],"Furthermore,":[108],"we":[109],"find":[110],"other":[112],"lossy":[113],"interfaces":[114],"have":[115],"a":[116,138],"significantly":[117],"smaller":[118],"impact":[119],"compared":[124],"interface.":[128],"These":[129],"simulation":[130],"align":[132],"with":[133],"established":[134],"findings,":[136],"providing":[137],"robust":[139],"framework":[140],"refining":[142],"design.":[144],"This":[145],"work":[146],"offers":[147],"precise":[148],"guidelines":[149],"mitigation,":[152],"essential":[153],"enhancing":[155],"coherence":[156],"times":[157],"developing":[159],"more":[160],"reliable":[161],"superconducting":[162],"processors.":[164]},"counts_by_year":[],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2026-02-19T00:00:00"}
