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An operational overcertification bound of 3. 6%, validated from over a million trajectories, now defines a pathway to more dependable quantum communication. This result stems from coherence-gated rout…
A symbol error rate approaching that of an ideal detector, achieved with just a few logical qubits, signals a potential shift in how complex wireless signals are decoded. This new quantum-classical fr…
Could silicon carbide ever rival lithium niobate as a platform for generating entangled photons. New designs demonstrate spontaneous parametric down-conversion in 4H Silicon Carbide on-insulator, a ma…
Three orders of magnitude, the extent of spectral bandwidth compression proposed by this design, represents a substantial leap beyond previous methods limited to a single order. This integrated device…
What do black holes teach us about Wigner's Friend? Until now, the paradoxes of black holes and quantum measurement have been considered separate problems, each with its own proposed solutions. Howeve…
Insider Brief PRESS RELEASE — Today QC Design announced the launch of Gauge, an extension of its Plaquette platform that determines the optimal fault-tolerance threshold for a given quantum error corr…
The business impact of cryptographic drift: The urgent case for post-quantum cryptography Federal News Network
AI Helped Spark a Quantum Breakthrough. The World 'Is Not Prepared' Time Magazine
arXiv:2604.20371v1 Announce Type: new Abstract: A two-qutrit extension of the quantum Rabi model is studied. Despite its increased complexity, the model results to be integrable under specific, physic…
arXiv:2604.20363v1 Announce Type: new Abstract: The present work focuses on the strong/weak interaction of many-body spin-systems with a cavity mode. It introduces the necessity of redefining the phys…
arXiv:2604.20353v1 Announce Type: new Abstract: We show that the construction of the linear interferometer in the Supplemental Material of arXiv:1909.09581 is flawed, leading to a generally suboptimal…
arXiv:2604.20338v1 Announce Type: new Abstract: Efficient resource allocation and optical switching promise high key rates, network adaptability, and cost reduction in repeaterless quantum communicati…
arXiv:2604.20335v1 Announce Type: new Abstract: We study a class of quantum dynamical maps for d-level systems that interpolate between positive, Schwarz, and completely positive evolutions. Our appro…
arXiv:2604.20321v1 Announce Type: new Abstract: The Traveling Salesman Problem is a classical NP-hard combinatorial optimization problem that has been extensively studied in operations research. A maj…
arXiv:2604.20303v1 Announce Type: new Abstract: We introduce an operational criterion to identify Wigner function (WF) negativity for an arbitrary quantum state within the framework of quantum non-dem…
arXiv:2604.20284v1 Announce Type: new Abstract: We present an explicit quantum circuit construction for Hamiltonian simulation of a first-order velocity--stress formulation of the three-dimensional el…
arXiv:2604.20180v1 Announce Type: new Abstract: We adopt a two-dimensional tensor-network (TN) ansatz to simulate variational quantum algorithms on two-dimensional qubit architectures, demonstrating i…
arXiv:2604.20149v1 Announce Type: new Abstract: Quantum coherence is an important quantum resource which plays a pivotal role in the field of quantum information. Based on metric adjusted skew informa…
arXiv:2604.20118v1 Announce Type: new Abstract: We initiate an investigation into a notion of state complexity for discrete-variable quantum systems. Specifically, we propose an information-theoretic …
arXiv:2604.20108v1 Announce Type: new Abstract: Higher-order networks with multiway interactions can exhibit collective dynamical phenomena that are absent in traditional pairwise network models. Howe…
arXiv:2604.20103v1 Announce Type: new Abstract: Continuous-variable (CV) quantum teleportation is usually benchmarked by average fidelity, but when the teleportation is repeatedly used within optical …
arXiv:2604.20088v1 Announce Type: new Abstract: Constrained combinatorial optimization problems are frequently reformulated as quadratic unconstrained binary optimization (QUBO) models in order to lev…
arXiv:2604.20033v1 Announce Type: new Abstract: We show how to directly and efficiently approximate arbitrary one-qubit unitaries, bypassing the Euler decomposition and the magnitude approximation pro…
arXiv:2604.20013v1 Announce Type: new Abstract: Early modular fault tolerant quantum computers remain constrained by costly inter-module communication and limited magic state factory service. Understa…