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arXiv:2604.21463v1 Announce Type: new Abstract: We investigate the reduced dynamics of two identical superconducting qubits capacitively coupled through a finite-length transmission line. Starting fro…
arXiv:2604.21458v1 Announce Type: new Abstract: Closed-loop superconducting-qubit calibration has matured into DAG-orchestrated protocol chains, yet published frameworks treat the bath via a Markovian…
arXiv:2604.21388v1 Announce Type: new Abstract: High-precision optical phase stabilization in quantum networks is fundamentally constrained by the strict photon-flux and duty-cycle limits required to …
arXiv:2604.21350v1 Announce Type: new Abstract: We investigate optimized vertical ion-shuttling protocols for trapped-ion applications across a range of ion-trap experiments, including three-dimension…
arXiv:2604.21348v1 Announce Type: new Abstract: We prove an exact quantum conservation law for a harmonic oscillator coupled to a ghost degree of freedom: a second classical conserved quantity lifts t…
arXiv:2604.21342v1 Announce Type: new Abstract: Magnetic quantum sensors based on trapped ions utilize properties of quantum mechanics which have optimized precision and beat current limits in sensor …
arXiv:2604.21333v1 Announce Type: new Abstract: We present pygridsynth, an open-source Python library for ancilla-free approximate Clifford+$T$ synthesis that runs in $O(\log(1/\epsilon))$ for precisi…
arXiv:2604.21323v1 Announce Type: new Abstract: In quantum estimation for a $d$-parameter family of density operators on a finite-dimensional Hilbert space $\mathcal{H}$, an estimator is specified by …
arXiv:2604.21320v1 Announce Type: new Abstract: The quantum Mpemba effect (ME) in Markovian systems is conventionally explained by a smaller overlap between the initial state and the slowest decay mod…
arXiv:2604.21288v1 Announce Type: new Abstract: We revisit the quantization of the order parameter, which we refer to as third quantization, from the perspective of the commutation relation between th…
arXiv:2604.21287v1 Announce Type: new Abstract: As quantum hardware scales toward fault tolerant operation, the demand for correct quantum error correction (QEC) circuits far outpaces manual design ca…
arXiv:2604.21274v1 Announce Type: new Abstract: A random access code (RAC) encodes an $L$-bit string into a $k$-bit $(L>k)$ message from which any designated source bit can be recovered with high prob…
arXiv:2604.21272v1 Announce Type: new Abstract: Quantum state tomography (QST) scales exponentially in both measurement and computational cost, making full reconstruction impractical for multi-qubit s…
arXiv:2604.21266v1 Announce Type: new Abstract: There has been intensive research on increasing the utility and performance of Parameterized Quantum Circuits (PQCs) in the past couple of years. Owing …
arXiv:2604.21230v1 Announce Type: new Abstract: Fast qubit reset is essential for qubit reuse in the noisy intermediate-scale quantum computing era, yet it conflicts with the weak decoherence required…
arXiv:2604.21210v1 Announce Type: new Abstract: In continuously monitored quantum systems, the feedback protocol of Garc\'ia-Pintos, Liu, and Gorshkov reshapes the arrow of time: a Hamiltonian $H_{\ma…
arXiv:2604.21208v1 Announce Type: new Abstract: We study the dynamics of $N$ photons in a Fock state, initially located inside one cavity, and coupled by an optical fiber to a second cavity. The entan…
arXiv:2604.21158v1 Announce Type: new Abstract: We present a general and efficient approach to compute phase-resolved multidimensional spectra of anharmonic molecular polaritons, based on a semiclassi…
arXiv:2604.21123v1 Announce Type: new Abstract: We introduce a qubit- and gate-efficient higher-order unconstrained binary optimization (HUBO) encoding for graph partitioning problems requiring label-…
arXiv:2604.21089v1 Announce Type: new Abstract: Estimating local observables in Gibbs states is a central problem in quantum simulation. While this task is BQP-complete at asymptotically low temperatu…
arXiv:2604.21012v1 Announce Type: new Abstract: We investigate how laser-driven, cooperative dipole-dipole interactions in weakly trapped atomic arrays give rise to self-organized configurations. Star…
arXiv:2604.20961v1 Announce Type: new Abstract: We explore the application of the Variational Quantum Eigensolver (VQE) to investigate the ground state properties, particularly the entanglement entrop…
arXiv:2604.20955v1 Announce Type: new Abstract: This work investigates the emergent thermalization regimes in a chaotic Tavis-Cummings (TC) model and their implications in quantum spectroscopy. While …
arXiv:2604.20952v1 Announce Type: new Abstract: In this work, we show that Berry phase estimation admits a natural and universal adiabatic error-cancellation mechanism, making it a promising candidate…