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arXiv:2604.12261v1 Announce Type: new Abstract: The path toward practical superconducting quantum processors requires the integration of a large number of high-performance qubits. Modular architecture…
arXiv:2604.12256v1 Announce Type: new Abstract: Quantum circuit simulation is crucial for the development of quantum algorithms, particularly given the high cost and noise limitations of physical quan…
arXiv:2604.12224v1 Announce Type: new Abstract: This work investigates the dynamics of a charged particle in a uniform magnetic field within the Bohm--Madelung formulation of quantum mechanics. In thi…
arXiv:2604.12187v1 Announce Type: new Abstract: We show that averaging matter dynamics over stochastic gravitational fluctuations gives rise to a complex velocity field \(\eta_{\mu} = \pi_{\mu} - i u_…
arXiv:2604.12186v1 Announce Type: new Abstract: We develop a quantum message-passing framework for factor graphs over finite abelian groups. Our starting point is the task of discriminating between a …
arXiv:2604.12157v1 Announce Type: new Abstract: Transferring the information stored in the expansion coefficients of a multi-qubit state to the coefficients of a continuous-variable state is an import…
arXiv:2604.12142v1 Announce Type: new Abstract: Strongly correlated materials are a natural target for fault-tolerant quantum computers, but they require tools beyond those developed for molecules. El…
arXiv:2604.12141v1 Announce Type: new Abstract: We review the ideas of how random matrix theory has to be properly applied to quantum physics; particularly we focus on how the spectrum has to be prope…
arXiv:2604.12131v1 Announce Type: new Abstract: The short-path quantum algorithm introduced by Hastings (Quantum 2018, 2019) is a variant of adiabatic quantum algorithms that enables an easier worst-c…
arXiv:2604.12106v1 Announce Type: new Abstract: Rydberg atomic receivers have recently emerged as a promising platform for radio-frequency (RF) sensing and reception due to their intrinsic broadband r…
arXiv:2604.12094v1 Announce Type: new Abstract: I argue that there is a straightforward way to understand the occurrence of wavefunction collapses or 'quantum events' in relational approaches to quant…
arXiv:2604.12050v1 Announce Type: new Abstract: We explore here how to generate a two-mode squeezed output using reservoir engineering in a double-cavity optomechanical system coupled to a common mech…
arXiv:2604.11968v1 Announce Type: new Abstract: We introduce a two state vector formalism of quantum mechanics by generalizing Bell's hidden variable model to higher dimensions and by attributing a ph…
arXiv:2604.11963v1 Announce Type: new Abstract: Quantum error correction assumes that all syndrome activations represent errors requiring correction. We present evidence from 756 QEC runs across three…
arXiv:2604.11952v1 Announce Type: new Abstract: Complexity class containments involving interactive proof classes are famously nonrelativizing: although $\mathsf{IP} = \mathsf{PSPACE}$, Fortnow and Si…
arXiv:2604.11910v1 Announce Type: new Abstract: Quantum correlations in networks with independent sources have revealed novel forms of nonclassical behavior. While entanglement in the sources is a nec…
arXiv:2604.11900v1 Announce Type: new Abstract: Programmable quantum hardware provides an emerging platform for exploring and controlling non-unitary quantum dynamics through measurement-based operati…
arXiv:2604.11897v1 Announce Type: new Abstract: We calculate the response of an Unruh--DeWitt detector in a 2+1d spacetime that contains a BTZ black hole in a superposition of locations. Upon performi…
arXiv:2604.11878v1 Announce Type: new Abstract: Processes with indefinite causal order (ICO), such as the quantum switch, are an emerging resource for quantum tasks and a fundamental test bed for stud…
arXiv:2604.11876v1 Announce Type: new Abstract: Closed chaotic quantum systems relax after a quench into a Gibbs ensemble. At late times, the relaxation speed is determined by their conservation laws …
arXiv:2604.11872v1 Announce Type: new Abstract: We provide a pedagogical introduction to eigenstate thermalization. This phenomenon, which occurs in generic systems, allows one to understand why therm…
arXiv:2604.11864v1 Announce Type: new Abstract: We present a parametrization of density matrices (mixed states) in a finite-dimensional Hilbert space $\mathbb{C}^n$, particularly suited to the descrip…
arXiv:2604.11858v1 Announce Type: new Abstract: We consider symmetries and reduction in non-relativistic many-body quantum mechanics, with the aim of identifying physically meaningful observables in s…
arXiv:2604.11857v1 Announce Type: new Abstract: Catalytic quantum error correction (CQEC) recovers quantum states via catalytic covariant transformations but requires full knowledge of the target stat…