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arXiv:2606.06019v1 Announce Type: new Abstract: "Polymer quantum mechanics" is the name given to a quantization scheme inspired by loop quantum gravity in which the configuration space of the theory i…

arXiv:2606.05992v1 Announce Type: new Abstract: Gottesman-Kitaev-Preskill (GKP) states are essential non-Gaussian resources for fault-tolerant photonic quantum computing, enabling logical qubit encodi…

arXiv:2606.05968v1 Announce Type: new Abstract: Fixed-ansatz Variational Quantum Eigensolvers (VQE), such as the Unitary Coupled Cluster with Singles and Doubles (UCCSD) framework, frequently suffer f…

arXiv:2606.05955v1 Announce Type: new Abstract: In this paper, we re-examine the well-known question of why electric charges exist only in quantized portions. In this context, we revisit the motion of…

arXiv:2606.05947v1 Announce Type: new Abstract: We propose quantum algorithms for preparing thermal states via the simulation of the thermofield double states. The key idea is to leverage double-brack…

arXiv:2606.05928v1 Announce Type: new Abstract: The nitrogen-vacancy (NV) center in diamond has attracted considerable attention as a highly sensitive quantum sensor that can operate at room temperatu…

arXiv:2606.05904v1 Announce Type: new Abstract: We show the emergence of memory effects in the dynamics of a driven two-level system interacting with a composite environment, and analyze their influen…

arXiv:2606.05884v1 Announce Type: new Abstract: Uncertainty principle, one of the most iconic features of quantum mechanics, was originally viewed as a fundamental limitation. Since the inception of q…

arXiv:2606.05865v1 Announce Type: new Abstract: We present a symmetry-adapted qubit encoding with complete active space (SAE-CAS) for quantum chemistry on fault-tolerant and near-term quantum processo…

arXiv:2606.05815v1 Announce Type: new Abstract: Adiabatic state preparation is often slowed by nonadiabatic leakage near small spectral gaps. We propose an engineered dissipative protocol that uses a …

arXiv:2606.05777v1 Announce Type: new Abstract: We extend the symmetry-adapted encoding (SAE) framework to periodic electronic structure, enabling qubit-efficient quantum simulation of crystalline mat…

arXiv:2606.05767v1 Announce Type: new Abstract: The dynamics of quantum measurements defines a precise relation between the information gained about one physical property of a system and the observabl…

arXiv:2606.05745v1 Announce Type: new Abstract: Determining the minimal distance between a target channel and a convex hull of predefined set of implementable channels is a fundamental problem in quan…

arXiv:2606.05719v1 Announce Type: new Abstract: We perform detailed studies of five Hamiltonian variational ansatzes (HVA) based on the Hamiltonian of the $(1+1)$d $\mathbb{Z}_2$ lattice gauge theory.…

arXiv:2606.05696v1 Announce Type: new Abstract: Entanglement generation is a central resource for quantum information processing, quantum networking, and quantum sensing. In practical implementations,…

arXiv:2606.05690v1 Announce Type: new Abstract: We study the problem of learning an unknown $n$-qubit Hamiltonian $H$ from $U = e^{-iHt}$ for a single time $t$, where $t$ may be arbitrarily large. For…

arXiv:2606.05664v1 Announce Type: new Abstract: In recent years, the spacetime code has arisen as a candidate for a unifying view of fault tolerance in space and time. On the other hand, the recent st…

arXiv:2606.05604v1 Announce Type: new Abstract: In compression-based quantum relaxations like QRAO, classical variables are encoded into qubits and decoded after optimization. We formalize that the ch…

arXiv:2606.05603v1 Announce Type: new Abstract: We study two-photon entangled states for quantum radar cross section (QRCS), which is an extension of a single-photon QRCS formula. Since signal-idler e…

arXiv:2606.05579v1 Announce Type: new Abstract: We introduce Transition states (T states), denoted by $\ket{T_k^n}$, as a class of multipartite entangled states characterized by a fixed number of stat…

arXiv:2606.05527v1 Announce Type: new Abstract: Classically testing for the presence of anti-commuting operators on a quantum device is a critical tool underpinning recent progress in classical verifi…