Emergent spacetime via Algorithmic Quantum Networks and Ergoshperic Information Buffering

rui kawada

Yuxin Chen, Zite Xia, Jian Li +4 more

Quantum key distribution (QKD) networks provide information-theoretically secure keys for distant parties, emerging as a vital alternative to classical cryptography infrastructures threatened by quantum computing. In QKD networks, the immediacy of key supply service is crucial to the security and performance of applications, as their data must be encrypted before transmission. While key buffering can enable instant key supply services, existing schemes rely on heuristic solutions that incur prohibitive key resource consumption, thus significantly hindering practical deployment. To address this issue, we propose QuIKS, an instant key supply scheme based on adaptive buffering, offering the dominant advantage of near-zero key supply latency while consuming ultra-low key resources (i.e., ultra-low buffer size). Specifically, it is built upon a novel analytical model that determines the minimum buffer size required to guarantee near-zero-latency key supply performance. Guided by this model, QuIKS introduces a lightweight two-phase control algorithm that dynamically determines key relaying requests and adjusts the buffer size by probing real-time application patterns and network conditions. Experiments on a real QKD network testbed demonstrate that QuIKS achieves near-zero key supply latency while providing a more than 10-fold reduction in key buffer size compared to state-of-the-art schemes.

Mabrouk Sabbeh

What if spacetime isn’t a fundamental fabric, but an emergent fluid? This paper proposes a novel quantum informational framework where macroscopic spacetime naturally emerges as the hydrodynamic limit of a finite cosmic qubit network. Governed by a single, non-Abelian network master equation, this model eliminates the need for dark matter, dark energy, or arbitrary fine-tuned parameters. Instead, anomalous galactic rotation curves and horizon-induced quantum drag are explained through intrinsic geometric mechanisms. Crucially, this framework introduces no free adjustable variables. To ensure absolute empirical falsifiability, it provides exact, parameter-free numerical targets for next-generation experiments—including LiteBIRD, LISA, and the Einstein Telescope. It offers a transparent, cross-scale validation matrix for quantum informational spacetime.

Marco O. Lanzagorta

changzheng zhou, ZIQING zhou

This paper proposes a theoretical and experimental scheme for experimentallysimulating the phenomenon of ”temporal structure emergence” on near-term quantum processors (such as superconducting qubit arrays). By translating the theoretical framework of ”time emerging from quantum information” into executablequantum circuits and algorithms, this research designs a set of hybrid quantumclassical algorithms based on variational quantum simulation (VQS) to simulatethe dynamics of simplified spacetime tensor networks and extract order parameterscharacterizing the arrow of time and causal structure. The experimental objectivesinclude preparing initial entangled states with no preset time direction, realizing evolution akin to renormalization group flow through parameterized quantumcircuits, and measuring causal correlation functions to observe the emergence ofthe arrow of time as a spontaneous symmetry-breaking phenomenon. The articleelaborates on the physical implementation, algorithmic steps, error analysis, andexpected results, demonstrating the feasibility of a proof-of-principle verification onnoisy intermediate-scale quantum (NISQ) devices, thereby providing an actionableexperimental entry point for testing quantum gravity and foundational theories ofspacetime

Norman, Hillary Lanier