Geometric phases in quantum information

E Sjöqvist - International Journal of Quantum Chemistry, 2015 - Wiley Online Library
The rise of quantum information science has opened up a new venue for applications of the
geometric phase (GP), as well as triggered new insights into its physical, mathematical, and …

Fundamental phenomena of quantum mechanics explored with neutron interferometers

J Klepp, S Sponar, Y Hasegawa - Progress of Theoretical and …, 2014 - academic.oup.com
Ongoing fascination with quantum mechanics keeps driving the development of the wide
field of quantum optics, including its neutron optics branch. Application of neutron-optical …

Non-Markovian effects on the geometric phase

XL Huang, XX Yi - Europhysics Letters, 2008 - iopscience.iop.org
The geometric phases of a two-level atom interacting with non-Markovian environments are
calculated and the non-Markovian effects on the geometric phases are discussed in this …

On geometric phases for quantum trajectories

E Sjöqvist - Acta Physica Hungarica B) Quantum Electronics, 2006 - Springer
A sequence of completely positive maps can be decomposed into quantum trajectories. The
geometric phase or holonomy of such a trajectory is delineated. For nonpure initial states, it …

Discussion on the geometric phase for an open two-level system in the cosmic string spacetime with torsion

Z Wang, C Xu - Europhysics Letters, 2019 - iopscience.iop.org
We investigate the geometric phase for a two-level atom interacting with massless scalar
field in the background spacetime of a cosmic string with torsion in the framework of open …

Preservation of quantum Fisher information and geometric phase of a single qubit system in a dissipative reservoir through the addition of qubits

YN Guo, QL Tian, YF Mo, GL Zhang, K Zeng - International Journal of …, 2018 - Springer
In this paper, we have investigated the preservation of quantum Fisher information (QFI) of a
single-qubit system coupled to a common zero temperature reservoir through the addition of …

Phase factors of periodically driven two-level systems

MM Gontijo, JCA Barata - Physica Scripta, 2020 - iopscience.iop.org
Using a specially developed perturbative solution for periodically driven quantum systems,
we show how to obtain phase factors for both a single qubit and for two interacting qubits …

Nonadiabatic geometric phase induced by a counterpart of the Stark shift

EI Duzzioni, CJ Villas-Boas, SS Mizrahi… - Europhysics …, 2005 - iopscience.iop.org
We analyse the geometric phase due to the Stark shift in a system composed of a bosonic
field, driven by time-dependent linear amplification, interacting dispersively with a two-level …

Geometric phase for mixed states

LC Kwek, DM Tong, JL Chen, JF Du, KW Choo… - Laser physics, 2006 - Springer
Geometric phase for mixed states Page 1 398 ISSN 1054-660X, Laser Physics, 2006, Vol. 16,
No. 2, pp. 398–401. © MAIK “Nauka /Interperiodica” (Russia), 2006. Original Text © Astro, Ltd …

A new concept of geometric phase in parameter space: coupling as a parameter

L **ng - Journal of Physics A: Mathematical and General, 2006 - iopscience.iop.org
We have obtained the geometric phase of the tripartite spin-1/2 system with spin–spin
coupling and discussed the influence of this coupling on the geometric phase. We have …