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arXiv:2604.07013v1 Announce Type: new Abstract: Designing quantum neural networks (QNNs) that are both accurate and deployable on NISQ hardware is challenging. Handcrafted ansatze must balance express…
arXiv:2604.06984v1 Announce Type: new Abstract: Chip integration of quantum emitters is a crucial milestone for scalable quantum photonic information processing. Among optically active defect centers …
arXiv:2604.06931v1 Announce Type: new Abstract: Free-space optical (FSO) links supporting spatial multiplexing provide a natural physical realization of Quantum MIMO channels. We develop a first-princ…
arXiv:2604.06908v1 Announce Type: new Abstract: Most quantum divergences derive their structure from classical f-divergences or Renyi-type constructions, a dependence that obscures several quantum geo…
arXiv:2604.06891v1 Announce Type: new Abstract: The quantum nature of gravity remains experimentally unverified, despite recent proposals to probe it using tabletop experiments such as gravity-mediate…
arXiv:2604.06866v1 Announce Type: new Abstract: We propose a hardware efficient quantum residual neural network which implements residual connections through a deterministic linear combination of iden…
arXiv:2604.06806v1 Announce Type: new Abstract: It is shown that algebraic techniques based on the Lie algebra so(4,2) provide efficient tools for evaluating Lamb shifts and radiative decay rates for …
arXiv:2604.06679v1 Announce Type: new Abstract: Optical loss is a common bottleneck in photonic quantum information processing, undermining the quantum advantage over classical approaches. Although se…
arXiv:2604.06669v1 Announce Type: new Abstract: Quantum target ranging, which estimates a target position using entangled photon pairs, is known to offer an error-probability advantage over classical …
arXiv:2604.06639v1 Announce Type: new Abstract: Shor's algorithm outperforms its classical counterpart in efficient prime factorization. We explore the coherence and entanglement dynamics of the evolv…
arXiv:2604.06606v1 Announce Type: new Abstract: We present an enhanced entangled quantum clock protocol that incorporates a quantum phase estimation algorithm to directly estimate proper-time differen…
arXiv:2604.06604v1 Announce Type: new Abstract: Magic states play an important role in fault-tolerant quantum computation, and so the quantification of magic for quantum states is of great significanc…
arXiv:2604.06584v1 Announce Type: new Abstract: A particular type of linear optical multiport, the Grover four-port, has previously been shown to couple the spatial symmetry of a photon to its directi…
arXiv:2604.06578v1 Announce Type: new Abstract: Grover's algorithm searches for data satisfying a desired condition in an unstructured database. This algorithm can search a space of size $N$ in $\sqrt…
arXiv:2604.06574v1 Announce Type: new Abstract: The purpose of this paper is to investigate the coherent feedback $H^\infty$ control problem for linear quantum systems. A key contribution is a simplif…
arXiv:2604.06565v1 Announce Type: new Abstract: Robust continuous-variable (CV) quantum information processing requires correcting realistic errors in bosonic systems, but all existing schemes rely on…
arXiv:2604.06528v1 Announce Type: new Abstract: The field of high-dimensional quantum photonics involves the use of multimode photonic degrees-of-freedom such as the spatial, temporal, or spectral str…
arXiv:2604.06523v1 Announce Type: new Abstract: Quantum operations on pure states can be fully represented by unitary matrices. Variational quantum circuits, also known as quantum neural networks, emb…
arXiv:2604.06466v1 Announce Type: new Abstract: We unite two of the most widely used approaches for strongly damped, non-Markovian open quantum dynamics, the Hierarchical Equations of Motion (HEOM) an…
arXiv:2604.06461v1 Announce Type: new Abstract: We introduce a systematic protocol for constructing quantum Hilbert-space-fragmented Hamiltonians, whose Krylov-sector structure, unlike in classically …
arXiv:2604.06457v1 Announce Type: new Abstract: Although quantum random number generators rely on the inherent indeterminism of quantum mechanics, ensuring that the numbers produced are secure remains…
arXiv:2604.06455v1 Announce Type: new Abstract: We develop a dissipative extension of classical mechanics based on a complex, and more generally quaternionic, action principle that endows every classi…
arXiv:2604.06450v1 Announce Type: new Abstract: A basic model is provided that places active, intentional choices by biological organisms on a solid physical footing. The model is provisionally called…
arXiv:2604.06412v1 Announce Type: new Abstract: Complex numbers are central to the formulation of quantum mechanics, yet their role as a genuine resource is only beginning to be understood. In this wo…