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arXiv:2604.01515v1 Announce Type: new Abstract: Topological phase transitions in generic multiband systems are mediated by band-touching defects whose codimension -- the number of momentum directions …
arXiv:2604.01507v1 Announce Type: new Abstract: Let $G$ be a strongly regular graph of prime order $p$ with connection degree $k \geq 6$. We prove that the \emph{quantum walk characteristic polynomial…
arXiv:2604.01482v1 Announce Type: new Abstract: Characterising multi-time quantum processes is essential for analysing temporally correlated noise and for designing effective control and mitigation st…
arXiv:2604.01478v1 Announce Type: new Abstract: We introduce a twisted fiber-bundle construction of quantum CSS codes over group algebras \(R=\mathbb F_2[G]\), where each base generator carries a gene…
arXiv:2604.01429v1 Announce Type: new Abstract: Classical shadows (CS) has recently emerged as an important framework to efficiently predict properties of an unknown quantum state. A common strategy i…
arXiv:2604.01426v1 Announce Type: new Abstract: This paper develops a distributed variational quantum algorithm for solving large-scale linear equations. For a linear system of the form $Ax=b$, the la…
arXiv:2604.01408v1 Announce Type: new Abstract: Commutativity gadgets provide a technique for lifting classical reductions between constraint satisfaction problems to quantum-sound reductions between …
arXiv:2604.01376v1 Announce Type: new Abstract: Resource estimation is a significant challenge in evaluating fault tolerant quantum computers. Existing approaches often rely on either fixed architectu…
arXiv:2604.01369v1 Announce Type: new Abstract: General-purpose programmable photonic processors offer a flexible foundation for integrating various functionalities within a single chip. A two-dimensi…
arXiv:2604.01353v1 Announce Type: new Abstract: We construct a broad class of completely positive maps and Go\-rini--Kossakowski--Sudarshan-Lindblad generators for fermionic systems induced by linear …
arXiv:2604.01301v1 Announce Type: new Abstract: Achieving fast, excitation-free quantum control is a vital challenge in modern quantum technologies. In many cases, shortcuts to adiabaticity enable fas…
arXiv:2604.01296v1 Announce Type: new Abstract: Symmetries play a central role in quantum many-body physics, yet uncovering them systematically remains challenging. We introduce a bootstrap framework …
arXiv:2604.01282v1 Announce Type: new Abstract: An important measure of utility for a quantum code is the identification of which logical operations can be implemented fault-tolerantly on its codespac…
arXiv:2604.01250v1 Announce Type: new Abstract: Routing in wireless communication networks is shaped by mobility, interference, congestion, and competing service requirements, making route selection a…
Quantum computers need vastly fewer resources than thought to break vital encryption Ars Technica
Six Timepix chips, developed at CERN and deployed with ADVACAM, are onboard NASA’s Artemis II mission to measure radiation exposure for the crew and spacecraft electronics during their lunar orbit. Th…
Until now, the shape of a quantum trap dictated how a rotating Bose-Einstein condensate would fail, but no one systematically explored the difference. This work reveals that in box-like traps, instabi…
Diamante Financial Technologies received a $1.5 million investment to advance its quantum-safe Layer-1 blockchain, addressing the vulnerability of $2.4 trillion in crypto assets. This funding will sup…
Research at the University of Eastern Finland focuses on developing photodetectors using two-dimensional semiconductor materials integrated on silicon nitride chips, addressing the need for compact, e…
Boston University will utilize artificial intelligence and machine learning to analyze genomic, biomarker, and cognitive data, seeking to improve Alzheimer’s disease prevention and drug discovery. Thi…
Superconducting quantum computers offer scalability for next-generation computing, but scaling to millions of qubits faces challenges with interconnect bottlenecks. This research investigates commerci…
Optimal control of spin squeezing now surpasses the two-axis-twisting benchmark, delivering stronger squeezing than previously possible in systems with finite-range interactions. This advance overcome…
A search space for the reconciled key, once 2n possibilities, can now be reduced to a single candidate using a newly demonstrated attack. This ‘Manipulate-and-Observe’ method exploits parity leakage d…
Until now, certifying a quantum advantage in simple communication tasks demanded complex protocols. This work demonstrates that a quantum advantage emerges when measurements adapt to the message itsel…