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Showing 1 to 12 of 22 entries
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From the surface to volume: concepts for the next generation of optical-holographic data-storage materials.

Angewandte Chemie (International ed. in English)

Bruder FK, Hagen R, Rölle T, Weiser MS, Fäcke T.
PMID: 21538730
Angew Chem Int Ed Engl. 2011 May 09;50(20):4552-73. doi: 10.1002/anie.201002085. Epub 2011 Apr 29.

Optical data storage has had a major impact on daily life since its introduction to the market in 1982. Compact discs (CDs), digital versatile discs (DVDs), and Blu-ray discs (BDs) are universal data-storage formats with the advantage that the...

A single-atom quantum memory.

Nature

Specht HP, Nölleke C, Reiserer A, Uphoff M, Figueroa E, Ritter S, Rempe G.
PMID: 21532588
Nature. 2011 May 12;473(7346):190-3. doi: 10.1038/nature09997. Epub 2011 May 01.

The faithful storage of a quantum bit (qubit) of light is essential for long-distance quantum communication, quantum networking and distributed quantum computing. The required optical quantum memory must be able to receive and recreate the photonic qubit; additionally, it...

Efficient teleportation between remote single-atom quantum memories.

Physical review letters

Nölleke C, Neuzner A, Reiserer A, Hahn C, Rempe G, Ritter S.
PMID: 25166964
Phys Rev Lett. 2013 Apr 05;110(14):140403. doi: 10.1103/PhysRevLett.110.140403. Epub 2013 Apr 02.

We demonstrate teleportation of quantum bits between two single atoms in distant laboratories. Using a time-resolved photonic Bell-state measurement, we achieve a teleportation fidelity of (88.0 ± 1.5)%, largely determined by our entanglement fidelity. The low photon collection efficiency...

Traumatic Infra-renal Aortic Dissection After a High-energy Trauma: A Case Report of a Primary Missed Diagnosis.

Orthopedic reviews

Godry H, Rölleke G, Mumme A, Schildhauer TA, Gothner M.
PMID: 24744835
Orthop Rev (Pavia). 2014 Jan 29;6(1):5031. doi: 10.4081/or.2014.5031. eCollection 2014 Jan 20.

A traumatic infra-renal aortic dissection is a rare but life-threatening injury that follows deceleration injuries. The mechanism of blunt abdominal aortic injury involves both direct and indirect forces. The successful management of patients with traumatic injuries depends on a...

A systematic approach to normalization in probabilistic models.

Information retrieval

Lipani A, Roelleke T, Lupu M, Hanbury A.
PMID: 30416369
Inf Retr Boston. 2018;21(6):565-596. doi: 10.1007/s10791-018-9334-1. Epub 2018 Jun 30.

Every information retrieval (IR) model embeds in its scoring function a form of term frequency (TF) quantification. The contribution of the term frequency is determined by the properties of the function of the chosen TF quantification, and by its...

Scalable DB+IR Technology: Processing Probabilistic Datalog with HySpirit.

Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V

Frommholz I, Roelleke T.
PMID: 29368760
Datenbank Spektrum. 2016;16(1):39-48. doi: 10.1007/s13222-015-0208-z. Epub 2016 Jan 26.

Probabilistic Datalog (PDatalog, proposed in 1995) is a probabilistic variant of Datalog and a nice conceptual idea to model Information Retrieval in a logical, rule-based programming paradigm. Making PDatalog work in real-world applications requires more than probabilistic facts and...

A New Three-Component Photo-Initiating System for Visible Light Recording of Volume Holograms with Single-Pulsed Laser.

Polymers

Berneth H, Bruder FK, Fäcke T, Hansen S, Kawamura K, Pitzer L, Kern S, Wewer B, Rölle T.
PMID: 34685280
Polymers (Basel). 2021 Oct 13;13(20). doi: 10.3390/polym13203517.

Versatile substituted electron-deficient trichloromethylarenes can easily be synthesized and combined with a Safranine O/triarylalkylborate salt to form a highly efficient three-component photo-initiation system that starts free radical polymerization to finally form holographic gratings with a single-pulsed laser. The mechanism...

Using EEG in Resource-Limited Areas: Comparing Qualitative and Quantitative Interpretation Methods in Cerebral Malaria.

Pediatric neurology

Andrews A, Zelleke T, Izem R, Gai J, Harrar D, Mvula J, Postels DG.
PMID: 34763248
Pediatr Neurol. 2022 Jan;126:96-103. doi: 10.1016/j.pediatrneurol.2021.10.012. Epub 2021 Oct 19.

BACKGROUND: Our goal was to compare the strength of association and predictive ability of qualitative and quantitative electroencephalographic (EEG) factors with the outcomes of death and neurological disability in pediatric cerebral malaria (CM).METHODS: We enrolled children with a clinical...

Ring closing metathesis in protic media by means of a neutral and polar ruthenium benzylidene complex.

Chemical communications (Cambridge, England)

Rölle T, Grubbs RH.
PMID: 12122669
Chem Commun (Camb). 2002 May 21;(10):1070-1. doi: 10.1039/b201865a.

The ring closing olefine metathesis in protic solvents using a new ruthenium benzylidene complex is described.

Room-temperature single-photon level memory for polarization states.

Scientific reports

Kupchak C, Mittiga T, Jordaan B, Namazi M, Nölleke C, Figueroa E.
PMID: 25564048
Sci Rep. 2015 Jan 07;5:7658. doi: 10.1038/srep07658.

An optical quantum memory is a stationary device that is capable of storing and recreating photonic qubits with a higher fidelity than any classical device. Thus far, these two requirements have been fulfilled for polarization qubits in systems based...

Simple and compact diode laser system stabilized to Doppler-broadened iodine lines at 633  nm.

Applied optics

Krause F, Benkler E, Nölleke C, Leisching P, Sterr U.
PMID: 33361901
Appl Opt. 2020 Dec 01;59(34):10808-10812. doi: 10.1364/AO.409308.

We present a compact iodine-stabilized laser system at 633 nm, based on a distributed-feedback laser diode. Within a footprint of 27×15

Theta-Alpha Variability on Admission EEG Is Associated With Outcome in Pediatric Cerebral Malaria.

Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society

Andrews A, Zelleke T, Harrar D, Izem R, Gai J, Postels D.
PMID: 34669356
J Clin Neurophysiol. 2021 May 27; doi: 10.1097/WNP.0000000000000865. Epub 2021 May 27.

PURPOSE: Pediatric cerebral malaria has high rates of mortality and neurologic morbidity. Although several biomarkers, including EEG, are associated with survival or morbidity, many are resource intensive or require skilled interpretation for clinical use. Automation of quantitative interpretation of...

Showing 1 to 12 of 22 entries