Quantum Correlations in Spacetime
A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Quantum Information".
Deadline for manuscript submissions: 31 January 2026 | Viewed by 17
Special Issue Editors
Interests: quantum information; quantum information theory; quantum optics and ultracold atoms; quantum optics of quantum many-body systems
Special Issue Information
Dear Colleagues,
Quantum correlations—such as entanglement, steering, and nonlocality—are among the most intriguing and fundamental features of quantum mechanics. While the study of spatial quantum correlations has led to profound insights into quantum information processing and foundational physics, recent advances have highlighted the importance of understanding quantum correlations that are distributed not only across space but also through time. Temporal structures beyond classical intuition, as well as the interplay between quantum theory and relativistic constraints, are reshaping our understanding of how quantum systems evolve and interact in spacetime.
This Special Issue, Quantum Correlations in Spacetime, aims to gather contributions exploring both theoretical and experimental aspects of quantum correlations that manifest across space and time. We invite original research articles, reviews, and perspectives addressing topics including—but not limited to—temporal steering, Leggett–Garg inequalities, quantum causal models, quantum games, quantum combs or process tensors, relativistic quantum information, quantum Markovianity and non-Markovianity, spacetime entanglement structures, and measurement effects on temporal correlations. We also adopt an application-oriented perspective and invite manuscripts that apply these insights to advance current quantum technologies, such as quantum computing, quantum communications, and quantum metrology. We particularly welcome interdisciplinary works connecting quantum information theory, quantum computing, quantum foundations, and relativistic or gravitational frameworks.
Through this collection, we hope to foster a deeper understanding of the nature of quantum correlations in spacetime, stimulate new research directions, and promote discussions that bridge the gaps between quantum theory, causality, and spacetime physics.
We look forward to your contributions to this exciting and rapidly developing field.
Prof. Dr. Vlatko Vedral
Dr. Xiangjing Liu
Guest Editors
Manuscript Submission Information
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Keywords
- quantum information
- quantum spatiotemporal correlations
- quantum comb or process tensor
- signalling quantum games
- quantum causal inference
- measurement effects
- quantum thermodynamics
- quantum dimension reduction
- quantum error correction for spatiotemporal errors
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