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The q-deformed harmonic oscillator is studied in the light of q-deformed phase space variables. This allows a formulation of the corresponding Hamiltonian in terms of the ordinary canonical variables $x$ and $p$. The spectrum shows…

高能物理 - 理论 · 物理学 2008-02-03 A. Lorek , A. Ruffing , J. Wess

Approaching Shannon's capacity via geometric shaping has usually been regarded as challenging due to modulation and demodulation complexity, requiring look-up tables to store the constellation points and constellation bit labeling. To…

信号处理 · 电气工程与系统科学 2024-01-25 Ali Mirani , Erik Agrell , Magnus Karlsson

We study the information geometry and the entropic dynamics of a 3D Gaussian statistical model. We then compare our analysis to that of a 2D Gaussian statistical model obtained from the higher-dimensional model via introduction of an…

数学物理 · 物理学 2012-05-01 Carlo Cafaro , Adom Giffin , Cosmo Lupo , Stefano Mancini

Inspired by connections to two dimensional quantum theory, we define several models of computation based on permuting distinguishable particles (which we call balls), and characterize their computational complexity. In the quantum setting,…

量子物理 · 物理学 2016-10-24 Scott Aaronson , Adam Bouland , Greg Kuperberg , Saeed Mehraban

The present article can be considered as a complement to the work P.R.D 93, 045002 (2016) where an nonperturbative approach to QED with x-electric critical potential steps was developed. In the beginning we study conditions when in- and…

高能物理 - 理论 · 物理学 2016-05-27 S. P. Gavrilov , D. M. Gitman , A. A. Shishmarev

Quantum resources, such as entanglement, can decrease the uncertainty of a parameter-estimation procedure beyond what is classically possible. This phenomenon is well described for noiseless systems with asymptotically many measurement…

量子物理 · 物理学 2021-08-09 Jason Saunders , Jean-Francois Van Huele

In this work, we use the Shannon informational entropies to study an electron confined in a double quantum dot; we mean the entropy in the space of positions, $S_r$, in the space of momentum, $S_p$, and the total entropy, $S_t = S_r+S_p$.…

In this paper we introduce the $q$-deformed Heisenberg picture equation. We consider some examples such as : the spinless particle, the electr\'on interaction with a magnnetic field and $q$-deformed harmonnic oscillator. The $q$-Heisenberg…

数学物理 · 物理学 2025-04-15 Julio César Jaramillo Quiceno

A minimal observable length is a common feature of theories that aim to merge quantum physics and gravity. Quantum mechanically, this concept is associated to a nonzero minimal uncertainty in position measurements, which is encoded in…

In this paper, some general properties of Shannon information measures are investigated over sets of probability distributions with restricted marginals. Certain optimization problems associated with these functionals are shown to be…

信息论 · 计算机科学 2020-08-13 Mladen Kovačević , Ivan Stanojević , Vojin Šenk

We study the evolution of a qubit evolving according to the Schr\"odinger equation with a Hamiltonian containing noise terms, modeled by random diagonal and off-diagonal matrix elements. We show that the noise-averaged qubit density matrix…

量子物理 · 物理学 2021-12-17 Qin Huang , Marco Merkli

Quasiparticle poisoning following particle impacts poses a significant challenge to the development of fault-tolerant superconducting quantum computers, as a sudden excess of quasiparticles can simultaneously degrade the coherence of…

We demonstrate a measure for the effective number of parameters constrained by a posterior distribution in the context of cosmology. In the same way that the mean of the Shannon information (i.e. the Kullback-Leibler divergence) provides a…

宇宙学与河外天体物理 · 物理学 2019-11-26 Will Handley , Pablo Lemos

It is not obvious how to extend Shannon's original information entropy to higher dimensions, and many different approaches have been tried. We replace the English text symbol sequence originally used to illustrate the theory by a discrete,…

信息论 · 计算机科学 2016-09-06 Kieran G. Larkin

In the q-deformed theory the perturbation approach can be expressed in terms of two pairs of undeformed position and momentum operators. There are two configuration spaces. Correspondingly there are two q-perturbation Hamiltonians, one…

高能物理 - 理论 · 物理学 2011-09-13 Jian-zu Zhang

The nature of concept learning is a core question in cognitive science. Theories must account for the relative difficulty of acquiring different concepts by supervised learners. For a canonical set of six category types, two distinct…

信息论 · 计算机科学 2015-03-03 Andreas D. Pape , Kenneth J. Kurtz , Hiroki Sayama

We examine how the informational properties of a confined single ion response in a Paul trap modified by optical-lattice. We focus on the ground and first excited motional states and show that Fisher information, Shannon entropy, and…

In this work, a scattering process of quantum particles through a potential barrier is considered. The statistical complexity and the Fisher-Shannon information are calculated for this problem. The behaviour of these entropy-information…

适应与自组织系统 · 物理学 2015-06-15 Ricardo Lopez-Ruiz , Jaime Sanudo

In this paper, we present some results on information, complexity and entropy as defined below and we discuss their relations with the Kolmogorov-Sinai entropy which is the most important invariant of a dynamical system. These results have…

动力系统 · 数学 2019-08-17 Vieri Benci , Claudio Bonanno , Stefano Galatolo , Giulia Menconi , Federico Ponchio

Distribution estimation for noisy data via density deconvolution is a notoriously difficult problem for typical noise distributions like Gaussian. We develop a density deconvolution estimator based on quadratic programming (QP) that can…

统计方法学 · 统计学 2018-12-06 Ran Yang , Daniel Apley , Jeremy Staum , David Ruppert