Geometric quantum discord and coherence in a dipolar interacting
magnetic system
- URL: http://arxiv.org/abs/2301.02891v1
- Date: Sat, 7 Jan 2023 16:45:17 GMT
- Title: Geometric quantum discord and coherence in a dipolar interacting
magnetic system
- Authors: Clebson Cruz, Maron F. Anka, Hamid-Reza Rastegar-Sedehi and Cleidson
Castro
- Abstract summary: This work explores the effect of the quantum-level crossing, induced by the magnetic anisotropies of dipolar interacting systems, on the quantum discord and coherence of the system.
The results show that, while the quantum discord has a clear signature of the quantum level-crossing, the basis dependence of the quantum coherence hides the crossover regarding the measured basis.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The study of low-dimensional metal complexes has revealed fascinating
characteristics regarding the ground-state crossover shown by spin-gaped
systems. In this context, this work explores the effect of the quantum-level
crossing, induced by the magnetic anisotropies of dipolar interacting systems,
on the quantum discord and coherence of the system. The analytical expressions
for the quantum discord, based on Schatten 1-norm, and the $l_1$ trace-norm
quantum coherence for dinuclear spin-1/2 systems, are provided in terms of the
magnetic anisotropies. The results show that, while the quantum discord has a
clear signature of the quantum level-crossing, the basis dependence of the
quantum coherence hides the crossover regarding the measured basis. In
addition, the global quantum coherence is wholly stored within the correlations
of the system, regardless of its reference basis.
Related papers
- Coherent dynamics of flavor mode entangled neutrinos [0.0]
We map the neutrino state as a multi-mode quantum system into qubit and qutrit frameworks.
Our findings emphasize the potential of these systems as robust candidates for quantum information tasks.
arXiv Detail & Related papers (2025-01-10T19:23:18Z) - Dynamics of Quantum Coherence and Non-Classical Correlations in Open Quantum System Coupled to a Squeezed Thermal Bath [0.0]
We investigate the dynamics of quantum coherence and non-classical correlations in a two-qubit open quantum system coupled to a squeezed thermal reservoir.
Our findings demonstrate that non-classical correlations such as quantum consonance, quantum discord, local quantum uncertainty, and quantum Fisher information are highly sensitive to the collective regime.
This work bridges theoretical advancements with real-world applications, offering a comprehensive framework for leveraging quantum resources under the influence of environmental decoherence.
arXiv Detail & Related papers (2024-12-19T14:46:09Z) - Quantum Information Resources in Spin-1 Heisenberg Dimer Systems [0.0]
We explore the quantum information resources within bipartite pure and mixed states of the quantum spin-1 Heisenberg dimer system.
We derive the system's density operator at thermal equilibrium and establish a mathematical framework for analyzing quantum resource metrics.
arXiv Detail & Related papers (2024-09-12T14:36:21Z) - Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems.
We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices.
This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
arXiv Detail & Related papers (2023-06-01T16:49:20Z) - Quantifying measurement-induced quantum-to-classical crossover using an
open-system entanglement measure [49.1574468325115]
We study the entanglement of a single particle under continuous measurements.
We find that the entanglement at intermediate time scales shows the same qualitative behavior as a function of the measurement strength.
arXiv Detail & Related papers (2023-04-06T09:45:11Z) - Geometric phases along quantum trajectories [58.720142291102135]
We study the distribution function of geometric phases in monitored quantum systems.
For the single trajectory exhibiting no quantum jumps, a topological transition in the phase acquired after a cycle.
For the same parameters, the density matrix does not show any interference.
arXiv Detail & Related papers (2023-01-10T22:05:18Z) - Sensing quantum chaos through the non-unitary geometric phase [62.997667081978825]
We propose a decoherent mechanism for sensing quantum chaos.
The chaotic nature of a many-body quantum system is sensed by studying the implications that the system produces in the long-time dynamics of a probe coupled to it.
arXiv Detail & Related papers (2021-04-13T17:24:08Z) - Quantum Fisher information and skew information correlations in dipolar
spin system [1.5630592429258865]
Quantum Fisher information (QFI) and skew information (SI) plays a key role in the quantum resource theory.
We consider a pair ofspin-1/2 particles coupled with dipolar and Dzyaloshinsky-Moriya (DM) interactions, serving as the physical carrier of quantum information.
arXiv Detail & Related papers (2020-11-11T16:18:11Z) - Quantum Non-equilibrium Many-Body Spin-Photon Systems [91.3755431537592]
dissertation concerns the quantum dynamics of strongly-correlated quantum systems in out-of-equilibrium states.
Our main results can be summarized in three parts: Signature of Critical Dynamics, Driven Dicke Model as a Test-bed of Ultra-Strong Coupling, and Beyond the Kibble-Zurek Mechanism.
arXiv Detail & Related papers (2020-07-23T19:05:56Z) - Unraveling the topology of dissipative quantum systems [58.720142291102135]
We discuss topology in dissipative quantum systems from the perspective of quantum trajectories.
We show for a broad family of translation-invariant collapse models that the set of dark state-inducing Hamiltonians imposes a nontrivial topological structure on the space of Hamiltonians.
arXiv Detail & Related papers (2020-07-12T11:26:02Z) - Distribution of quantum coherence and quantum phase transition in the
Ising system [2.318473106845779]
Quantifying quantum coherence of a given system plays an important role in quantum information science.
We propose an analysis on the critical behavior of two types Ising systems when distribution of quantum coherence.
arXiv Detail & Related papers (2020-01-29T07:28:04Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.