Entanglement in photo-ionization process

被引：0

作者：

Ivanov, I. A. ^{[1
]}

Kim, Kyung Taec ^{[1
,2
]}

机构：

[1] Inst Basic Sci, Ctr Relativist Laser Sci, Gwangju 61005, South Korea

[2] GIST, Dept Phys & Photon Sci, Gwangju 61005, South Korea

来源：

SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

QUANTUM STATE; IONIZATION; ATOMS; FIELD;

D O I：

10.1038/s41598-024-62198-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We report a study of the entanglement between the quantized photon field and an atom arising in the photo-ionization process. Our approach is based on an ab initio solution of the time-dependent Schr & ouml;dinger equation (TDSE) describing the quantum evolution of a bipartite system consisting of the atom and the quantized electromagnetic field. Using the solution of the TDSE, we calculate the reduced photon density matrix, which we subsequently use to compute entanglement entropy. We explain some properties of the entanglement entropy and propose an approximate formula for the entanglement entropy based on the analysis of the density matrix and its eigenvalues. We present the results of a comparative study of the entanglement in the photo-ionization process for various ionization regimes, including the tunneling and the multiphoton ionization regimes.

引用

页数：18

共 50 条

[1] A high-fidelity quantum matter-link between ion-trap microchip modules [J].

Akhtar, M. ;

Bonus, F. ;

Lebrun-Gallagher, F. R. ;

Johnson, N. I. ;

Siegele-Brown, M. ;

Hong, S. ;

Hile, S. J. ;

Kulmiya, S. A. ;

Weidt, S. ;

Hensinger, W. K. .

NATURE COMMUNICATIONS, 2023, 14 (01)

[2]

Ammosov M. V., 1986, Soviet Physics - JETP, V64, P1191

[3] Solving the Schrodinger eigenvalue problem by the imaginary time propagation technique using splitting methods with complex coefficients [J].

Bader, Philipp ;

Blanes, Sergio ;

Casas, Fernando .

JOURNAL OF CHEMICAL PHYSICS, 2013, 139 (12)

[4]

BELL JS, 1987, SPEAKABLE UNSPEAKABL

[5] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].

BENNETT, CH ;

BRASSARD, G ;

CREPEAU, C ;

JOZSA, R ;

PERES, A ;

WOOTTERS, WK .

PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899

[6]

Berestetskii V., 1982, Quantum Electrodynamics, Vsecond

[7]

BIALYNICKIBIRULA I, 1977, ACTA PHYS AUSTRIACA, P111

[8] Experimental realization of teleporting an unknown pure quantum state via dual classical and Einstein-Podolsky-Rosen channels [J].

Boschi, D ;

Branca, S ;

De Martini, F ;

Hardy, L ;

Popescu, S .

PHYSICAL REVIEW LETTERS, 1998, 80 (06) :1121-1125

[9]

Cohen-Tannoudji C., 1989, PHOTONS ATOMS INTRO

[10] Emergence of oscillations in quantum entanglement during rescattering [J].

Czirjak, Attila ;

Majorosi, Szilard ;

Kovacs, Judit ;

Benedict, Mihaly G. .

PHYSICA SCRIPTA, 2013, T153

← 1 2 3 4 5 →