Beyond Mesons: Unveiling Hidden Tetraquark States
![Tetraquark operators are constructed from displaced quarks and antiquarks arranged in single-site, I-shaped doubly-displaced, and cross-shaped quadruply-displaced configurations, with variations denoted by ‘a’ and ‘b’ representing differing displacement orderings and encompassing two distinct color structures as defined by [latex] Eqs. (12) [/latex] and [latex] (13) [/latex].](https://arxiv.org/html/2603.19192v1/x1.png)
New lattice QCD calculations reveal that accurately describing the energies of light meson resonances requires the inclusion of operators representing more complex, tetraquark configurations.
Science
Designing with Orthogonal Arrays: A Path to Entangled States
This review explores the structural properties of mixed orthogonal arrays and their connection to error-correcting codes, revealing new methods for constructing highly entangled quantum systems.
Unmasking Virtualized Malware: A New Approach to Binary Deobfuscation
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Securing Wireless with Fluid Antennas
![The study demonstrates that security optimization within a Finite-State Automaton (FAS) exhibits a nuanced relationship with evolving threat landscapes, revealing a three-dimensional surface of secrecy and throughput that shifts based on eavesdropper capabilities-specifically, with analyses conducted across scenarios featuring five, fifteen, and twenty-five network eavesdroppers [latex]N\_E = 5, 15, 25[/latex].](https://arxiv.org/html/2603.17224v1/x7.png)
New research demonstrates how dynamically adjusting antenna configurations can dramatically improve the security of short wireless transmissions against eavesdropping.
Decoding Deception: A New Approach to Spotting Fake Speech
Researchers are leveraging the inner workings of audio compression to build more robust detectors for synthetic speech and audio deepfakes.