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arXiv:2604.05508v1 Announce Type: new Abstract: A fundamental problem in quantum physics is to establish whether a multiparticle quantum state can be uniquely determined from its local marginals. In t…
arXiv:2604.05505v1 Announce Type: new Abstract: As quantum computing moves from isolated experiments toward integration with large-scale workflows, the integration of quantum devices into HPC systems …
arXiv:2604.05473v1 Announce Type: new Abstract: Spontaneous emission of a quantum emitter, such as an excited atom, is a fundamental process in quantum electrodynamics (QED), typically associated with…
arXiv:2604.05456v1 Announce Type: new Abstract: Quantum phase estimation~(QPE) is central to numerous quantum algorithms, yet its standard implementation demands an $\calO(m^{2})$-gate quantum Fourier…
arXiv:2604.05455v1 Announce Type: new Abstract: From gravity to electromagnetism, apparent action at a distance has always been resolved by deeper, local explanations. Yet today, Bell's theorem is wid…
arXiv:2604.05452v1 Announce Type: new Abstract: In the pursuit of quantum advantage for financial engineering, researchers face a critical dilemma: analog rotation gates suffer from inherent 'sine-to-…
arXiv:2604.05422v1 Announce Type: new Abstract: Decoherence is usually deemed detrimental to quantum information processing. Its control and minimization require significant costs and operating overhe…
arXiv:2604.05420v1 Announce Type: new Abstract: Conventional noise analysis in atomic-ensemble sensing assumes a continuous-medium approximation, thereby treating the atomic system as a deterministic …
arXiv:2604.05380v1 Announce Type: new Abstract: Problems in quantum chemical simulations, especially achieving accurate excited-state potential energy surfaces, are among the primary applications to a…
arXiv:2604.05331v1 Announce Type: new Abstract: To characterize the effect of Hawking radiation induced by the quantum atmosphere beyond the event horizon on entanglement, we employ concurrence as the…
arXiv:2604.05325v1 Announce Type: new Abstract: Quantum battery capacity, as a critical metric for quantifying energy storage and release in quantum systems, exhibits complex behaviors in curved space…
arXiv:2604.05321v1 Announce Type: new Abstract: In this work we propose an addressing scheme for quantum networks which relies on quantum states held by devices. Quantum network devices use their addr…
arXiv:2604.05317v1 Announce Type: new Abstract: This paper proposes a scalable planning algorithm for creating defect-free atom arrays in neutral-atom systems. The algorithm generates a $\mathcal{O}(\…
arXiv:2604.05218v1 Announce Type: new Abstract: We find that rank deficiency of the local Hamiltonian in a classically fragmented model is the key mechanism leading to quantum Hilbert space fragmentat…
arXiv:2604.05170v1 Announce Type: new Abstract: In this paper, we formulate the phase space description of qubit systems using coadjoint orbits of $SU(2)$ and the Stratonovich-Weyl correspondence, yie…
arXiv:2604.05133v1 Announce Type: new Abstract: In this paper, we introduce a new quantum query lower bound framework. It is inspired by Zhandry's compressed oracle technique, but it also subsumes the…
arXiv:2604.05126v1 Announce Type: new Abstract: Quantum low-density parity-check (qLDPC) codes can encode many logical qubits within a single code block at low physical qubit overhead, yet magic state…
arXiv:2604.05107v1 Announce Type: new Abstract: Optical frequency combs combine ultrashort pulse duration and phase stability, making them powerful resources for high-precision ranging even when affec…
arXiv:2604.05105v1 Announce Type: new Abstract: We demonstrate a circuit QED analog of an atomic micromaser that utilizes an artificial, multi level atom, pumped into a population-inverted state by a …
arXiv:2604.05098v1 Announce Type: new Abstract: We develop a hybrid classical-quantum algorithm to solve a type of linear reaction-diffusion equation, the neutron diffusion (generalized) k-eigenvalue …
arXiv:2604.05089v1 Announce Type: new Abstract: We demonstrate that a weak nonlinear magnetic entrance edge induces a tennis-racket (Dzhanibekov) instability in the shell-resolved orbital pseudospin d…
arXiv:2604.05048v1 Announce Type: new Abstract: Tunable couplers in superconducting qubit architectures enable strong qubit-qubit interactions for two-qubit gates while suppressing unwanted coupling d…
arXiv:2604.05047v1 Announce Type: new Abstract: Dynamical instabilities can amplify small perturbations into measurable signals, offering a route to quantum-enhanced sensing. This mechanism was experi…
arXiv:2604.05038v1 Announce Type: new Abstract: Out-of-time-order correlators (OTOCs) are the main tool for probing quantum chaos and scrambling, and have become crucial probes in many areas of quantu…