Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Erwin Brüning"'
Autor:
S. Nagamachi, Erwin Brüning
Publikováno v:
Journal of Modern Optics. 66:1476-1490
Using a simple model of the quantized photon field in an optical fibre we suggest a model of quantum teleportation of continuous variables which is more realistic than the usual one in the sense th...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a5d38f694c2173446457739980de84c
https://doi.org/10.1080/09500340.2019.1634224
https://doi.org/10.1080/09500340.2019.1634224
Autor:
Shigeaki Nagamachi, Erwin Brüning
Publikováno v:
Complex Variables and Elliptic Equations. 59:787-808
Tempered ultra-hyperfunctions do not have the same type of localization properties as Schwartz distributions or Sato hyperfunctions; but the localization properties seem to play an important role in the proofs of the various versions of the edge of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f54165b57df34030dc54c27e23c22e6
https://doi.org/10.1080/17476933.2013.783027
https://doi.org/10.1080/17476933.2013.783027
Autor:
Philippe Blanchard, Erwin Brüning
The second edition of this textbook presents the basic mathematical knowledge and skills that are needed for courses on modern theoretical physics, such as those on quantum mechanics, classical and quantum field theory, and related areas. The authors
Autor:
Shigeaki Nagamachi, Erwin Brüning
It turns out that a parametrization of degenerate density matrices requires a parametrization of $\mathfrak{F}=U(n)/({U(k_1)\times U(k_2)\times \cdots \times U(k_m)})\quad n=k_1 +\cdots + k_m $ where $U(k)$ denotes the set of all unitary $k\times k$-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::831e0a88116704c12811bfd96b5fb154
http://arxiv.org/abs/1611.00182
http://arxiv.org/abs/1611.00182
Publikováno v:
Open Systems & Information Dynamics. 15:397-408
A parametrization of density operators for bipartite quantum systems is proposed. It is based on the particular parametrization of the unitary group found recently by Jarlskog. It is expected that this parametrization will find interesting applicatio
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https://explore.openaire.eu/search/publication?articleId=doi_________::8ac925e33f5c564106331dc51f42fb1d
https://doi.org/10.1142/s1230161208000274
https://doi.org/10.1142/s1230161208000274
Autor:
Shigeaki Nagamachi, Erwin Brüning
Publikováno v:
Open Systems & Information Dynamics. 15:155-172
For the treatment of teleportation of continuous quantum variables, often the Wigner functions are used. In this paper, we will show that by using the holomorphic representation of the canonical commutation relations (CCR), the teleportation of conti
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https://explore.openaire.eu/search/publication?articleId=doi_________::8b814bf017b44ea81c1d247af1ab02a2
https://doi.org/10.1142/s1230161208000146
https://doi.org/10.1142/s1230161208000146
Autor:
Erwin Brüning, Francesco Petruccione
Publikováno v:
Open Systems & Information Dynamics. 15:109-121
Already in the case of finite dimensional Hilbert spaces [Formula: see text] the general form of density matrices ρ is not known. The main reason for this lack of knowledge is the nonlinear constraint for these matrices. We propose a representation
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https://explore.openaire.eu/search/publication?articleId=doi_________::d863bcf7c1cdfa87801ca08112ac0c88
https://doi.org/10.1142/s1230161208000109
https://doi.org/10.1142/s1230161208000109
Autor:
Erwin Brüning, Shigeaki Nagamachi
Publikováno v:
Journal of Mathematical Physics. 45:2199-2231
Since there are indications (from string theory and concrete models) that one must consider relativistic quantum field theories with a fundamental length the question of a suitable framework for such theories arises. It is immediately evident that qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17b9c792a6ac3db05cca3e1c189c1342
https://doi.org/10.1063/1.1737055
https://doi.org/10.1063/1.1737055
Autor:
Shigeaki Nagamachi, Erwin Brüning
Publikováno v:
Letters in Mathematical Physics. 63:141-155
This note addresses the problem of localization in quantum field theory; more specifically we contribute to the ongoing discussion about the most appropriate concept of localization which one should use in relativistic quantum field theory: through l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a07a51a7221755429bb3f37010e037
https://doi.org/10.1023/a:1023084312072
https://doi.org/10.1023/a:1023084312072
Autor:
Philippe Blanchard, Erwin Brüning
Publikováno v:
Mathematical Methods in Physics ISBN: 9783319140445
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62b24256f899f6a61a3ef49cb3d40e60
https://doi.org/10.1007/978-3-319-14045-2_13
https://doi.org/10.1007/978-3-319-14045-2_13