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1.
2.1 Quantum states, operations, and measurements. 7
Open Access
Title:
2.1 Quantum states, operations, and measurements. 7
Author:
Hans Aschauer
;
Hans Aschauer
;
Hans Aschauer
;
Zweitgutachter Ignacio Cirac
Hans Aschauer
;
Hans Aschauer
;
Hans Aschauer
;
Zweitgutachter Ignacio Cirac
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Description:
Quantum communication
Quantum communication
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Contributors:
The Pennsylvania State University CiteSeerX Archives
Year of Publication:
20120621
Source:
http://edoc.ub.unimuenchen.de/3588/1/
Aschauer
_Hans.pdf
http://edoc.ub.unimuenchen.de/3588/1/
Aschauer
_Hans.pdf
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Document Type:
text
Language:
en
Rights:
Metadata may be used without restrictions as long as the oai identifier remains attached to it.
Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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URL:
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.232.6798
http://edoc.ub.unimuenchen.de/3588/1/Aschauer_Hans.pdf
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.232.6798
http://edoc.ub.unimuenchen.de/3588/1/Aschauer_Hans.pdf
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2.
Quantum Communication and Decoherence
Open Access
Title:
Quantum Communication and Decoherence
Author:
Hans Aschauer
;
Hans J. Briegel
Hans Aschauer
;
Hans J. Briegel
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Contributors:
The Pennsylvania State University CiteSeerX Archives
Year of Publication:
20130115
Source:
http://arxiv.org/pdf/quantph/0208014v1.pdf
http://arxiv.org/pdf/quantph/0208014v1.pdf
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Document Type:
text
Language:
en
Rights:
Metadata may be used without restrictions as long as the oai identifier remains attached to it.
Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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URL:
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.251.6459
http://arxiv.org/pdf/quantph/0208014v1.pdf
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.251.6459
http://arxiv.org/pdf/quantph/0208014v1.pdf
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3.
Quantum Communication and Decoherence
Open Access
Title:
Quantum Communication and Decoherence
Author:
Hans Aschauer
;
Hans J. Briegel
Hans Aschauer
;
Hans J. Briegel
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Contributors:
The Pennsylvania State University CiteSeerX Archives
Year of Publication:
20130115
Source:
http://arxiv.org/pdf/quantph/0208014v2.pdf
http://arxiv.org/pdf/quantph/0208014v2.pdf
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Document Type:
text
Language:
en
Rights:
Metadata may be used without restrictions as long as the oai identifier remains attached to it.
Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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URL:
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.251.5753
http://arxiv.org/pdf/quantph/0208014v2.pdf
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.251.5753
http://arxiv.org/pdf/quantph/0208014v2.pdf
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4.
Quantum communication in noisy environments
Title:
Quantum communication in noisy environments
Author:
Aschauer, Hans
Aschauer, Hans
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Description:
In this thesis, we investigate how protocols in quantum communication theory are influenced by noise. Specifically, we take into account noise during the transmission of quantum information and noise during the processing of quantum information. We describe three novel quantum communication protocols which can be accomplished efficiently in a no...
In this thesis, we investigate how protocols in quantum communication theory are influenced by noise. Specifically, we take into account noise during the transmission of quantum information and noise during the processing of quantum information. We describe three novel quantum communication protocols which can be accomplished efficiently in a noisy environment: (1) Factorization of Eve: We show that it is possible to disentangle transmitted qubits a posteriori from the quantum channel's degrees of freedom. (2) Cluster state purification: We give multipartite entanglement purification protocols for a large class of entangled quantum states. (3) Entanglement purification protocols from quantum codes: We describe a constructive method to create bipartite entanglement purification protocols form quantum error correcting codes, and investigate the properties of these protocols, which can be operated in two different modes, which are related to quantum communication and quantum computation protocols, respectively.
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Publisher:
LudwigMaximiliansUniversität München
Year of Publication:
20050427
Document Type:
Dissertation ; NonPeerReviewed
Subjects:
Fakultät für Physik
Fakultät für Physik
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Relations:
http://edoc.ub.unimuenchen.de/3588/
URL:
http://edoc.ub.unimuenchen.de/3588/1/Aschauer_Hans.pdf
http://nbnresolving.de/urn:nbn:de:bvb:1935882
http://edoc.ub.unimuenchen.de/3588/1/Aschauer_Hans.pdf
http://nbnresolving.de/urn:nbn:de:bvb:1935882
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Content Provider:
University of Munich: Digital theses
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5.
Private entanglement over arbitrary distances, even using noisy apparatus
Open Access
Title:
Private entanglement over arbitrary distances, even using noisy apparatus
Author:
Aschauer, Hans
;
Briegel, Hans J.
Aschauer, Hans
;
Briegel, Hans J.
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Description:
We give a security proof of quantum cryptography based entirely on entanglement purification. Our proof applies to all possible attacks (individual and coherent). It implies the security of cryptographic keys distributed with the help of entanglementbased quantum repeaters. We prove the security of the obtained quantum channel which may not onl...
We give a security proof of quantum cryptography based entirely on entanglement purification. Our proof applies to all possible attacks (individual and coherent). It implies the security of cryptographic keys distributed with the help of entanglementbased quantum repeaters. We prove the security of the obtained quantum channel which may not only be used for quantum key distribution, but also for secure, albeit noisy, transmission of quantum information. ; Comment: Title changed. Accepted for publication in Physical Review Letters
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Year of Publication:
20000810
Document Type:
text
Subjects:
Quantum Physics
Quantum Physics
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URL:
http://arxiv.org/abs/quantph/0008051
http://arxiv.org/abs/quantph/0008051
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ArXiv.org (Cornell University Library)
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6.
Entanglement purification with noisy apparatus can be used to factor out an eavesdropper
Open Access
Title:
Entanglement purification with noisy apparatus can be used to factor out an eavesdropper
Author:
Aschauer, Hans
;
Briegel, Hans J.
Aschauer, Hans
;
Briegel, Hans J.
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Description:
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. Our proof applies to all possible attacks (individual and coherent). Due to the quantum nature of the entanglement purification protocol, it is also possible to use the obtained quantum cha...
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. Our proof applies to all possible attacks (individual and coherent). Due to the quantum nature of the entanglement purification protocol, it is also possible to use the obtained quantum channel for secure transmission of quantum information.
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Year of Publication:
20010813
Document Type:
text
Subjects:
Quantum Physics
Quantum Physics
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URL:
http://arxiv.org/abs/quantph/0108060
http://arxiv.org/abs/quantph/0108060
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ArXiv.org (Cornell University Library)
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7.
A security proof of quantum cryptography based entirely on entanglement purification
Open Access
Title:
A security proof of quantum cryptography based entirely on entanglement purification
Author:
Aschauer, Hans
;
Briegel, Hans J.
Aschauer, Hans
;
Briegel, Hans J.
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Description:
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. In the security regime, the purification process factorises the overall initial state into a tensorproduct state of Alice and Bob, on one side, and Eve on the other side, thus establishing...
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. In the security regime, the purification process factorises the overall initial state into a tensorproduct state of Alice and Bob, on one side, and Eve on the other side, thus establishing a completely private, albeit noisy, quantum communication channel between Alice and Bob. The security regime is found to coincide for all practical purposes with the purification regime of a twoway recurrence protocol. This makes twoway entanglement purification protocols, which constitute an important element in the quantum repeater, an efficient tool for secure longdistance quantum cryptography. ; Comment: Followup paper to quantph/0108060, submitted to PRA; 24 pages, revex4
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Year of Publication:
20011112
Document Type:
text
Subjects:
Quantum Physics
Quantum Physics
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URL:
http://arxiv.org/abs/quantph/0111066
http://arxiv.org/abs/quantph/0111066
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ArXiv.org (Cornell University Library)
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8.
Quantum Communication and Decoherence
Open Access
Title:
Quantum Communication and Decoherence
Author:
Aschauer, Hans
;
Briegel, Hans J.
Aschauer, Hans
;
Briegel, Hans J.
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Description:
In this contribution we will give a brief overview on the methods used to overcome decoherence in quantum communication protocols. We give an introduction to quantum error correction, entanglement purification and quantum cryptography. It is shown that entanglement purification can be used to create ``private entanglement'', which makes it a use...
In this contribution we will give a brief overview on the methods used to overcome decoherence in quantum communication protocols. We give an introduction to quantum error correction, entanglement purification and quantum cryptography. It is shown that entanglement purification can be used to create ``private entanglement'', which makes it a useful tool for cryptographic protocols. ; Comment: 31 pages, 10 figures, LaTeX, book chapter to appear in ``Coherent Evolution in Noisy Environments'', Lecture Notes in Physics, (Springer Verlag, BerlinHeidelbergNew York). Minor typos corrected
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Year of Publication:
20020802
Document Type:
text
Subjects:
Quantum Physics
Quantum Physics
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URL:
http://arxiv.org/abs/quantph/0208014
http://arxiv.org/abs/quantph/0208014
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ArXiv.org (Cornell University Library)
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9.
Local invariants for multipartite entangled states allowing for a simple entanglement criterion
Open Access
Title:
Local invariants for multipartite entangled states allowing for a simple entanglement criterion
Author:
Aschauer, Hans
;
Calsamiglia, John
;
Hein, Marc
;
Briegel, Hans J.
Aschauer, Hans
;
Calsamiglia, John
;
Hein, Marc
;
Briegel, Hans J.
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Description:
We present local invariants of multipartite pure or mixed states, which can be easily calculated and have a straightforward physical meaning. As an application, we derive a new entanglement criterion for arbitrary mixed states of $n$ parties. The new criterion is weaker than the partial transposition criterion but offers advantages for the stu...
We present local invariants of multipartite pure or mixed states, which can be easily calculated and have a straightforward physical meaning. As an application, we derive a new entanglement criterion for arbitrary mixed states of $n$ parties. The new criterion is weaker than the partial transposition criterion but offers advantages for the study of multipartite systems. A straightforward generalization of these invariants allows for the construction of a complete set of observable polynomial invariants. ; Comment: 12 pages. Version 3: minor corrections
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Year of Publication:
20030606
Document Type:
text
Subjects:
Quantum Physics
Quantum Physics
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URL:
http://arxiv.org/abs/quantph/0306048
http://arxiv.org/abs/quantph/0306048
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ArXiv.org (Cornell University Library)
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10.
Themenheft "Tourismus und Terrorismus"
Title:
Themenheft "Tourismus und Terrorismus"
Publisher:
Lucius & Lucius
Contributors:
Aschauer, Wolfgang ; Hopfinger, Hans ; Kagermeier, Andreas
Year of Publication:
2009
Document Type:
Buch
Subjects:
R Geographie
R Geographie
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Relations:
Themenheft "Tourismus und Terrorismus". Hrsg.: Aschauer, Wolfgang ; Hopfinger, Hans ; Kagermeier, Andreas Stuttgart : Lucius & Lucius, 2009.  (Zeitschrift für Tourismuswissenschaft ; 1,1) ISSN 18679501
URL:
http://edoc.kueichstaett.de/9907/
http://edoc.kueichstaett.de/9907/
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KU.edoc  Publikationsserver der Katholischen Universität EichstättIngolstadt
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Author
(6) Aschauer, Hans
(5) Briegel, Hans J.
(5) The Pennsylvania State University CiteSeerX...
(3) Hans Aschauer
(2) Aschauer, Ulrich
(2) Barbara Wolff
(2) Bowen, Paul
(2) Dorian Bevec
(2) Franz Hammerschmid
(2) G. King Farrington
(2) George M. Bahr
(2) Hans J. Briegel
(2) Heinrich Aschauer
(2) Herbert Jaksche
(2) Hofmann, Heinrich
(2) Luebbe, Henning
(2) Michael Ruhl
(2) Schindler, HansJuergen
(2) Schuler, Andreas
(2) Snijkers, Frans
(2) T Hans Probst
(2) Vogt, Ulrich
(1) Amon, Barbara
(1) Aschauer, Isabella
(1) Aschauer, Wolfgang
(1) Bauer(✝), Heidi
(1) Bittermann, Wolfgang
(1) Brunner, Thomas
(1) Calsamiglia, John
(1) Hansel, Armin
(1) Hausberger, Stefan
(1) Hein, Marc
(1) Hitzenberger, Regina
(1) Hopfinger, Hans
(1) Jandl, Robert
(1) Jobstmann, Heide
(1) Kagermeier, Andreas
(1) KasperGiebl, Anne
(1) Lalanne, Cecile
(1) Lalanne, Cécile
(1) Mauschitz, Gerd
(1) Purzner, Maria
(1) Puxbaum, Hans
(1) Schenk, Cornelia
(1) Schmidl, Christoph
(1) Seibert, Petra
(1) Simic, Stana
(1) Spangl, Wolfgang
(1) Van Herle, Jan
(1) Van herle, Jan
(1) Winiwarter, Wilfried
(1) Zechmeister, Andreas
(1) ZechmeisterBoltenstern, Sophie
(1) Zweitgutachter Ignacio Cirac
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(5) quantum physics
(1) behavior
(1) cathode supported
(1) cathode supported cell csc
(1) ceria
(1) colloidal stability
(1) contact
(1) cosintering
(1) dip coated
(1) electrolyte
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(1) geography
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(1) micro tubular
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(1) nickelate oxide
(1) oxide fuel cells
(1) oxygen diffusion
(1) r geographie
(1) sofcs
(1) temperature operation
(1) thermal expansion
(1) zirconia
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(3) 2009
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(2) Lausanne Ecole Polytechnique Fed.: Infoscience
(1) Munich LMU: Digital theses
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(1) EichstättIngolstadt Katholische Univ.
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