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Mean-field theories have proven to be efficient tools for exploring diverse phases of matter, complementing alternative methods that are more precise but also more computationally demanding. Conventional mean-field theories often fall short…

强关联电子 · 物理学 2024-09-04 Junyi Zhang , Zhengqian Cheng

The holographic principle and the thermodynamics of de Sitter space suggest that the total number of fundamental degrees of freedom associated with any finite-volume region of space may be finite. The naive picture of a short distance…

高能物理 - 理论 · 物理学 2009-11-11 Federico Piazza

We study the problem of driving an unknown initial mixed quantum state onto a known pure state without using unitary transformations. This can be achieved, in an efficient manner, with the help of sequential measurements on at least two…

量子物理 · 物理学 2009-11-11 L. Roa , G. Olivares

We describe our recent results on the resonant perturbation theory of decoherence and relaxation for quantum system with many qubits. The approach represents a rigorous analysis of the phenomenon of decoherence and relaxation for general…

量子物理 · 物理学 2009-11-17 M. Merkli , G. P. Berman , I. M. Sigal

Artificial quantum systems with synthetic dimensions enable exploring novel quantum phenomena difficult to create in conventional materials. These synthetic degrees of freedom increase the system's dimensionality without altering its…

量子物理 · 物理学 2025-08-11 Alexey Gorlach , Andrea Pizzi , Klaus Mølmer , Joseph Avron , Mordechai Segev , Ido Kaminer

Reservoir engineering is the term used in quantum control and information technologies to describe manipulating the environment within which an open quantum system operates. Reservoir engineering is essential in applications where storing…

量子物理 · 物理学 2017-09-14 T. Nguyen , Z. Miao , Y. Pan , N. H. Amini , V. Ugrinovskii , M. R. James

Recent Intrusion Detection System (IDS) research has increasingly moved towards the adoption of machine learning methods. However, most of these systems rely on supervised learning approaches, necessitating a fully labeled training set. In…

密码学与安全 · 计算机科学 2025-03-31 Maxime Gourceyraud , Rim Ben Salem , Christopher Neal , Frédéric Cuppens , Nora Boulahia Cuppens

Two initially correlated coherent states, each interacting with its own independent dissipative environment exhibit a sudden transition from classical to quantum decoherence. This change in the dynamics is a turning point in the…

量子物理 · 物理学 2018-05-02 F. Lastra , C. E. López , J. C. Retamal

We show how to realize, by means of non-abelian quantum holonomies, a set of universal quantum gates acting on decoherence-free subspaces and subsystems. In this manner we bring together the quantum coherence stabilization virtues of…

量子物理 · 物理学 2007-05-23 L. -A. Wu , P. Zanardi , D. A. Lidar

We present a novel algorithm for generating robust and consistent hypotheses for multiple-structure model fitting. Most of the existing methods utilize random sampling which produce varying results especially when outlier ratio is high. For…

计算机视觉与模式识别 · 计算机科学 2018-07-26 Kwang Hee Lee , Chanki Yu , Sang Wook Lee

Proving threshold theorems for fault-tolerant quantum computation is a burdensome endeavor with many moving parts that come together in relatively formulaic but lengthy ways. It is difficult and rare to combine elements from multiple papers…

量子物理 · 物理学 2025-08-15 Zhiyang He , Quynh T. Nguyen , Christopher A. Pattison

The decomposition of arbitrary unitary transformations into sequences of simpler, physically realizable operations is a foundational problem in quantum information science, quantum control, and linear optics. We establish a 1D Quantum Field…

量子物理 · 物理学 2026-03-20 Javier Álvarez-Vizoso , David Barral

Multiscale Finite Element Methods (MsFEMs) are now well-established finite element type approaches dedicated to multiscale problems. They first compute local, oscillatory, problem-dependent basis functions that generate a suitable…

数值分析 · 数学 2023-08-03 Rutger A. Biezemans , Claude Le Bris , Frédéric Legoll , Alexei Lozinski

Choosing a specific way of dividing a closed system into parts is a starting point for the decoherence program and for the quantum thermalization program. It is shown that one can always chose such way of partitioning that…

量子物理 · 物理学 2013-02-19 Oleg Lychkovskiy

This paper concludes a series of studies on the polyharmonic cascade, a deep machine learning architecture theoretically derived from indifference principles and the theory of random functions. A universal initialization procedure is…

机器学习 · 计算机科学 2025-12-23 Yuriy N. Bakhvalov

Foundation Models (FMs) have shown impressive performance on various text and image processing tasks. They can generalize across domains and datasets in a zero-shot setting. This could make them suitable for automated quality inspection…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Simon Baeuerle , Pratik Khanna , Nils Friederich , Angelo Jovin Yamachui Sitcheu , Damir Shakirov , Andreas Steimer , Ralf Mikut

By using quantum mechanical effects, quantum computers promise significant speedups in solving problems intractable for conventional computers. However, despite recent progress they remain limited in scaling and availability-making quantum…

量子物理 · 物理学 2020-12-11 Thomas Grurl , Jürgen Fuß , Robert Wille

Density-functional theory (DFT) has revolutionized computer simulations in chemistry and material science. A faithful implementation of the theory requires self-consistent calculations. However, this effort involves repeatedly diagonalizing…

量子物理 · 物理学 2023-07-17 Taehee Ko , Xiantao Li , Chunhao Wang

The process-matrix framework describes quantum correlations without presupposing a global causal order, yet its standard formulation implicitly relies on background structure through a fixed Choi-Jamiolkowski identification of local…

量子物理 · 物理学 2026-02-23 Issam Ibnouhsein

One of the potential applications of a quantum computer is solving quantum chemical systems. It is known that one of the fastest ways to obtain somewhat accurate solutions classically is to use approximations of density functional theory.…

量子物理 · 物理学 2020-11-18 Thomas E. Baker , David Poulin
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