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Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an X-nucleus, such as carbon-13 or nitrogen-15. This method is commonly used in nuclear magnetic resonance (NMR) spectroscopy to gain insights into complex chemical compounds' structural and compositional aspects. A typical heteronuclear correlation spectrum displays X-nucleus chemical shifts on one axis and a proton spectrum on the other...
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Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
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Non-locality Correlation in Two Driven Qubits Inside an Open Coherent Cavity: Trace Norm Distance and Maximum Bell

A -B A Mohamed1,2, H Eleuch3,4, C H Raymond Ooi5

  • 1Department of Mathematics, College of Science and Humanities in Al-Aflaj, Prince Sattam bin Abdulaziz University, Al-Aflaj, Saudi Arabia. abdelbastm@yahoo.com.

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We explored non-locality correlations between two qubits in a cavity field. Initial coherence intensity and superposition enhance these correlations, leading to sudden birth and death entanglement phenomena.

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Area of Science:

  • Quantum Information Science
  • Quantum Optics
  • Quantum Communication

Background:

  • Investigating quantum correlations is crucial for quantum information processing.
  • Open quantum systems present unique challenges for maintaining quantum correlations.
  • Cavity quantum electrodynamics provides a platform for studying light-matter interactions.

Purpose of the Study:

  • To analytically investigate non-locality correlations between two separated qubits within an open cavity field.
  • To explore the influence of cavity properties and initial states on these correlations.
  • To identify phenomena like sudden birth and death of entanglement.

Main Methods:

  • Analytical investigation of two-qubit systems coupled to an open cavity field.
  • Preparation of the cavity in a superposition coherent state.
  • Quantification of non-locality using measures such as trace norm, maximal Bell-correlation, and concurrence entanglement.

Main Results:

  • Non-locality correlations are significantly dependent on cavity decay and initial coherence intensity.
  • Enhanced initial coherence intensity and superposition amplify generated non-locality correlations.
  • The study observed the phenomena of sudden birth and death entanglement.

Conclusions:

  • The initial state of the cavity field and its decay dynamics are critical determinants of non-locality.
  • Controlling these parameters allows for manipulation of quantum correlations.
  • The findings contribute to understanding entanglement dynamics in open quantum systems.