Entanglement in helium

被引：40

作者：

Benenti, Giuliano ^{[1
,2
,3
]}

Siccardi, Stefano ^{[4
]}

Strini, Giuliano ^{[5
]}

机构：

[1] Univ Insubria, CNISM, I-22100 Como, Italy

[2] Univ Insubria, Ctr Nonlinear & Complex Syst, I-22100 Como, Italy

[3] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[4] Univ Milan, Dept Informat Technol, I-26013 Crema, Italy

[5] Univ Milan, Dept Phys, I-20133 Milan, Italy

来源：

EUROPEAN PHYSICAL JOURNAL D | 2013年 / 67卷 / 04期

关键词：

COHERENCE; ENERGY; STATES; PHOTOIONIZATION; THRESHOLD; HE;

D O I：

10.1140/epjd/e2013-40080-y

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a configuration-interaction variational method, we accurately compute the reduced, single-electron von Neumann and linear entropy for several low-energy, singlet and triplet eigenstates of helium atom. We estimate the amount of electron-electron orbital entanglement for such eigenstates and show that it decays with energy.

引用

页数：5

共 40 条

[1] The simplest double slit:: Interference and entanglement in double photoionization of H2 [J].

Akoury, D. ;

Kreidi, K. ;

Jahnke, T. ;

Weber, Th. ;

Staudte, A. ;

Schoeffler, M. ;

Neumann, N. ;

Titze, J. ;

Schmidt, L. Ph. H. ;

Czasch, A. ;

Jagutzki, O. ;

Costa Fraga, R. A. ;

Grisenti, R. E. ;

Diez Muino, R. ;

Cherepkov, N. A. ;

Semenov, S. K. ;

Ranitovic, P. ;

Cocke, C. L. ;

Osipov, T. ;

Adaniya, H. ;

Thompson, J. C. ;

Prior, M. H. ;

Belkacem, A. ;

Landers, A. L. ;

Schmidt-Boecking, H. ;

Doerner, R. .

SCIENCE, 2007, 318 (5852) :949-952

[2] Entanglement in many-body systems [J].

Amico, Luigi ;

Fazio, Rosario ;

Osterloh, Andreas ;

Vedral, Vlatko .

REVIEWS OF MODERN PHYSICS, 2008, 80 (02) :517-576

[3]

[Anonymous], 2002, Phys. Rev. A, DOI DOI 10.1103/PHYSREVB.65.042101

[4] Correlation and coherence phenomena studied by photoelectron spectroscopy [J].

Becker, U. ;

Langer, B. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2009, 601 (1-2) :78-87

[5]

Benenti G., 2007, BASIC TOOLS SPECIAL, VII

[6]

Benenti G., 2004, PRINCIPLES QUANTUM C, V1

[7] Entanglement dynamics of electron-electron scattering in low-dimensional semiconductor systems [J].

Buscemi, F. ;

Bordone, P. ;

Bertoni, A. .

PHYSICAL REVIEW A, 2006, 73 (05)

[8] Noise-assisted energy transfer in quantum networks and light-harvesting complexes [J].

Chin, A. W. ;

Datta, A. ;

Caruso, F. ;

Huelga, S. F. ;

Plenio, M. B. .

NEW JOURNAL OF PHYSICS, 2010, 12

[9]

Chuang I. N., 2000, Quantum Computation and Quantum Information

[10] Extrapolation method for the evaluation of above threshold ionization cross sections for one- and two-electron systems [J].

Cormier, E ;

Lambropoulos, P .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1995, 28 (23) :5043-5055

← 1 2 3 4 →