FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2793307124> ?p ?o ?g. }

• W2793307124 abstract "This thesis fathoms the possibilities and limitations of measurements in quantum optics. After a short introduction to the general aspects of measurements in quantum mechanics, it presents three examples of a measurement process in concrete applications to quantum optics. For one, while operators describing quantities of interest might have a simple theoretical form, it is often hard to actually implement a measurement of their expectation values experimentally. This situation is encountered in the first part which is devoted to the measurement of quantum statistical properties of a light beam. In contrast to classical optics, these statistics are not fully determined by first- and second-order correlations. Instead, higher-order correlations, usually described by non-Hermitian operators, are necessary to characterize the quantum state completely. A particular example is the N-photon Fock state, for which only a measurement of the Nth-order correlations allows for a full characterization. Here, we present a new method how to measure an important class of Nth-order correlations for arbitrary N in a single spatial mode with two polarizations with limited experimental resources. The second part is again centered around the realization of specific measurement operators for photon correlation measurements. However, in contrast to the previous chapter, these measurements are not an end in their own, but are designed to create specific quantum states as a consequence of the measurement process: A suitable measurement of photons emitted by a number of atoms allows to transfer the atoms into long-lived entangled states. We find that with this method it is possible to entangle two remote atomic qubits to an arbitrary and well-defined degree. Furthermore, we show how to generate two families of quantum states in an arbitrary number of remote atomic qubits: one family consists of all -- symmetric and non-symmetric -- total angular momentum eigenstates in N remote qubits, the other is a family of cluster states. It is also systematically investigated whether the technique of quantum state engineering by projective measurements allows for the creation of any arbitrary state. We find explicit solutions for the case of two and three qubits, while it is shown that no solution exist for N > 6. We conclude the section by proving that with some changes in the setup, this measurement-based quantum state engineering technique allows to create the same states among the scattered photons themselves rather than among the emitting atoms. The last part is devoted to the amount of information one is able to gain about a given system when performing a measurement. The corresponding limits of information are investigated at the example of the duality that arises in a two-way interferometer between the visibility of the interference pattern and the knowledge about the path of the interfering object. We show that there exist correlations between the phase difference the interfering object acquires on its way through the interferometer and the amount of which-way information retrievable from certain observables of the which-way detector. In this way, the which-way information becomes a phase-dependent quantity. In particular, we find that for certain values of the phase shift, the amount of extractable which-way information can be larger than allowed by phase-independent measurement. This property is put to use to find the optimal observable for the which-way detector readout in dependence on the phase of the interfering object. Following this strategy, we are able to gain more which-way information than previously thought possible." @default.
• W2793307124 created "2018-03-29" @default.
• W2793307124 creator A5084390868 @default.
• W2793307124 date "2011-10-24" @default.
• W2793307124 modified "2023-10-17" @default.
• W2793307124 title "Measurements in Quantum Optics" @default.
• W2793307124 hasPublicationYear "2011" @default.
• W2793307124 type Work @default.
• W2793307124 sameAs 2793307124 @default.
• W2793307124 citedByCount "0" @default.
• W2793307124 crossrefType "book" @default.
• W2793307124 hasAuthorship W2793307124A5084390868 @default.
• W2793307124 hasConcept C105795698 @default.
• W2793307124 hasConcept C121332964 @default.
• W2793307124 hasConcept C121864883 @default.
• W2793307124 hasConcept C12891224 @default.
• W2793307124 hasConcept C15706264 @default.
• W2793307124 hasConcept C159317903 @default.
• W2793307124 hasConcept C190463098 @default.
• W2793307124 hasConcept C190474826 @default.
• W2793307124 hasConcept C22984246 @default.
• W2793307124 hasConcept C2780009758 @default.
• W2793307124 hasConcept C2781089630 @default.
• W2793307124 hasConcept C33923547 @default.
• W2793307124 hasConcept C41008148 @default.
• W2793307124 hasConcept C62520636 @default.
• W2793307124 hasConcept C68717125 @default.
• W2793307124 hasConcept C77088390 @default.
• W2793307124 hasConcept C84114770 @default.
• W2793307124 hasConcept C94940 @default.
• W2793307124 hasConceptScore W2793307124C105795698 @default.
• W2793307124 hasConceptScore W2793307124C121332964 @default.
• W2793307124 hasConceptScore W2793307124C121864883 @default.
• W2793307124 hasConceptScore W2793307124C12891224 @default.
• W2793307124 hasConceptScore W2793307124C15706264 @default.
• W2793307124 hasConceptScore W2793307124C159317903 @default.
• W2793307124 hasConceptScore W2793307124C190463098 @default.
• W2793307124 hasConceptScore W2793307124C190474826 @default.
• W2793307124 hasConceptScore W2793307124C22984246 @default.
• W2793307124 hasConceptScore W2793307124C2780009758 @default.
• W2793307124 hasConceptScore W2793307124C2781089630 @default.
• W2793307124 hasConceptScore W2793307124C33923547 @default.
• W2793307124 hasConceptScore W2793307124C41008148 @default.
• W2793307124 hasConceptScore W2793307124C62520636 @default.
• W2793307124 hasConceptScore W2793307124C68717125 @default.
• W2793307124 hasConceptScore W2793307124C77088390 @default.
• W2793307124 hasConceptScore W2793307124C84114770 @default.
• W2793307124 hasConceptScore W2793307124C94940 @default.
• W2793307124 hasLocation W27933071241 @default.
• W2793307124 hasOpenAccess W2793307124 @default.
• W2793307124 hasPrimaryLocation W27933071241 @default.
• W2793307124 hasRelatedWork W1672381819 @default.
• W2793307124 hasRelatedWork W1984391726 @default.
• W2793307124 hasRelatedWork W2015838521 @default.
• W2793307124 hasRelatedWork W2090340714 @default.
• W2793307124 hasRelatedWork W2091884975 @default.
• W2793307124 hasRelatedWork W2311252589 @default.
• W2793307124 hasRelatedWork W2489108217 @default.
• W2793307124 hasRelatedWork W2610718639 @default.
• W2793307124 hasRelatedWork W2760792450 @default.
• W2793307124 hasRelatedWork W2797508384 @default.
• W2793307124 hasRelatedWork W2806077890 @default.
• W2793307124 hasRelatedWork W2889156887 @default.
• W2793307124 hasRelatedWork W2904945257 @default.
• W2793307124 hasRelatedWork W2949337544 @default.
• W2793307124 hasRelatedWork W2993969623 @default.
• W2793307124 hasRelatedWork W3033604433 @default.
• W2793307124 hasRelatedWork W3037497510 @default.
• W2793307124 hasRelatedWork W3099531803 @default.
• W2793307124 hasRelatedWork W3102141555 @default.
• W2793307124 isParatext "false" @default.
• W2793307124 isRetracted "false" @default.
• W2793307124 magId "2793307124" @default.
• W2793307124 workType "book" @default.