FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3207082185> ?p ?o ?g. }

• W3207082185 abstract "With their ability to process and transfer quantum information, large-scale entanglement-based quantum networks could be at the heart of a new age of quantum information, enabling fundamentally new applications such as distributed quantum computation, quantum communication, and quantum enhanced sensing. Due to their long spin coherence, controllable local qubit registers and optically active spins, color centers in diamond are prime candidates for nodes of such a network, and have enabled some of the most advanced quantum network demonstrations to date. These demonstrations include the distribution of a 3-node GHZ state across a quantum network, entanglement swapping, entanglement distillation, and memory-enhanced quantum communication. To move beyond current proof-of-principle networks, a further increase of entanglement generation rates is crucial. This thesis presents theoretical and experimental work on enhancing the spin-photon interface of color centers in diamond to achieve this goal, making use of the Purcell effect. The discussed work follows two main directions: embedding of color centers in open, tuneable Fabry-Perot micro-cavities, and in all-diamond photonic crystal cavities. First, we describe theoretical and experimental progress towards cavity-enhanced quantum networks based on nitrogen-vacancy (NV) centers in diamond. Due to their first order sensitivity to electric fields, we choose to embed NV centers in microns-thin diamond membranes that can be integrated into open fiber-based micro-cavities. We develop analytical methods to optimize the design of such open cavity systems for maximum Purcell enhancement of embedded color centers. We demonstrate a method to fabricate optically coherent NV centers in microns-thin diamond membranes, and use such structures to demonstrate the resonant excitation and detection of coherent, Purcell enhanced NV emission. A theoretical model in excellent agreement with our results suggests our system can improve entanglement rates between distant NV centers by two orders of magnitude with near-term improvements to the setup. Second, we describe progress towards an efficient spin-photon interface of group-IV color centers in diamond by coupling them to photonic nanostructures, allowing for large-scale integration. Due to their first-order insensitivity to electric fields, group-IV color centers can be brought in close proximity to surfaces (~ 100 nm), allowing for sub-wavelength mode volumes and thus very high Purcell factors. We numerically optimize photonic crystal cavity designs to maximize the Purcell enhancement of embedded emitters, test the robustness of our designs to real-world fabrication imperfections, and devise a method to efficiently interface nanophotonic structures. We then proceed to fabricate all-diamond photonic crystal cavities, making use of a dry etching technique that is selective to different crystallographic directions, and characterize the resulting optical quality factors. Finally, we marry the developed fabrication methods to fabricate microns-sized diamond platelets that can be transferred from a holding frame in a controlled fashion. This capability could be crucial for the realization of hybrid photonic circuits that we expect to be at the heart of future large-scale quantum networks." @default.
• W3207082185 created "2021-10-25" @default.
• W3207082185 creator A5061221612 @default.
• W3207082185 date "2021-01-01" @default.
• W3207082185 modified "2023-09-23" @default.
• W3207082185 title "Cavity-enhanced quantum network nodes in diamond" @default.
• W3207082185 doi "https://doi.org/10.4233/uuid:933b37d4-7f00-4070-becc-9c462bf9d8df" @default.
• W3207082185 hasPublicationYear "2021" @default.
• W3207082185 type Work @default.
• W3207082185 sameAs 3207082185 @default.
• W3207082185 citedByCount "0" @default.
• W3207082185 crossrefType "journal-article" @default.
• W3207082185 hasAuthorship W3207082185A5061221612 @default.
• W3207082185 hasConcept C121040770 @default.
• W3207082185 hasConcept C121332964 @default.
• W3207082185 hasConcept C159985019 @default.
• W3207082185 hasConcept C169699857 @default.
• W3207082185 hasConcept C186468114 @default.
• W3207082185 hasConcept C187486625 @default.
• W3207082185 hasConcept C190463098 @default.
• W3207082185 hasConcept C190474826 @default.
• W3207082185 hasConcept C192562407 @default.
• W3207082185 hasConcept C203087015 @default.
• W3207082185 hasConcept C22984246 @default.
• W3207082185 hasConcept C2776921476 @default.
• W3207082185 hasConcept C49040817 @default.
• W3207082185 hasConcept C5320026 @default.
• W3207082185 hasConcept C58053490 @default.
• W3207082185 hasConcept C62520636 @default.
• W3207082185 hasConcept C84114770 @default.
• W3207082185 hasConcept C89143813 @default.
• W3207082185 hasConcept C95013731 @default.
• W3207082185 hasConceptScore W3207082185C121040770 @default.
• W3207082185 hasConceptScore W3207082185C121332964 @default.
• W3207082185 hasConceptScore W3207082185C159985019 @default.
• W3207082185 hasConceptScore W3207082185C169699857 @default.
• W3207082185 hasConceptScore W3207082185C186468114 @default.
• W3207082185 hasConceptScore W3207082185C187486625 @default.
• W3207082185 hasConceptScore W3207082185C190463098 @default.
• W3207082185 hasConceptScore W3207082185C190474826 @default.
• W3207082185 hasConceptScore W3207082185C192562407 @default.
• W3207082185 hasConceptScore W3207082185C203087015 @default.
• W3207082185 hasConceptScore W3207082185C22984246 @default.
• W3207082185 hasConceptScore W3207082185C2776921476 @default.
• W3207082185 hasConceptScore W3207082185C49040817 @default.
• W3207082185 hasConceptScore W3207082185C5320026 @default.
• W3207082185 hasConceptScore W3207082185C58053490 @default.
• W3207082185 hasConceptScore W3207082185C62520636 @default.
• W3207082185 hasConceptScore W3207082185C84114770 @default.
• W3207082185 hasConceptScore W3207082185C89143813 @default.
• W3207082185 hasConceptScore W3207082185C95013731 @default.
• W3207082185 hasIssue "17" @default.
• W3207082185 hasLocation W32070821851 @default.
• W3207082185 hasOpenAccess W3207082185 @default.
• W3207082185 hasPrimaryLocation W32070821851 @default.
• W3207082185 hasRelatedWork W1624056353 @default.
• W3207082185 hasRelatedWork W1806828958 @default.
• W3207082185 hasRelatedWork W1993626701 @default.
• W3207082185 hasRelatedWork W2198358064 @default.
• W3207082185 hasRelatedWork W2219282147 @default.
• W3207082185 hasRelatedWork W2310513631 @default.
• W3207082185 hasRelatedWork W2563148106 @default.
• W3207082185 hasRelatedWork W2735519617 @default.
• W3207082185 hasRelatedWork W2764095888 @default.
• W3207082185 hasRelatedWork W2802951941 @default.
• W3207082185 hasRelatedWork W2914161684 @default.
• W3207082185 hasRelatedWork W2920089436 @default.
• W3207082185 hasRelatedWork W2922236515 @default.
• W3207082185 hasRelatedWork W3080827968 @default.
• W3207082185 hasRelatedWork W3098795176 @default.
• W3207082185 hasRelatedWork W3100978579 @default.
• W3207082185 hasRelatedWork W3103024753 @default.
• W3207082185 hasRelatedWork W3165045975 @default.
• W3207082185 hasRelatedWork W325331701 @default.
• W3207082185 hasVolume "2021" @default.
• W3207082185 isParatext "false" @default.
• W3207082185 isRetracted "false" @default.
• W3207082185 magId "3207082185" @default.
• W3207082185 workType "article" @default.