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We present a general condition to obtain subspaces that decay uniformly in a system governed by the Lindblad master equation and use them to perform error mitigated quantum computation. The expectation values of dynamics encoded in such…

量子物理 · 物理学 2024-11-26 Nishchay Suri , Jason Saied , Davide Venturelli

In this paper, the global well-posedness and stability of classical solutions to the multidimensional hydrodynamic model for semiconductors on the framework of Besov space are considered. We weaken the regularity requirement of the initial…

偏微分方程分析 · 数学 2009-05-10 Daoyuan Fang , Jiang Xu , Ting Zhang

The regularity of integration kernels forces decay rates of singular values of associated integral operators. This is well-known for symmetric operators with kernels defined on $(a,b) \times (a,b)$, where $(a,b)$ is an interval. Over time,…

泛函分析 · 数学 2023-11-07 Darko Volkov

We prove that $k$-th order derivatives of perturbative classical solutions to the hard and soft potential Boltzmann equation (without the angular cut-off assumption) in the whole space, ${\mathbb R}^{n}_x$ with $n \ge 3$, converge in…

偏微分方程分析 · 数学 2016-02-22 Vedran Sohinger , Robert M. Strain

The coefficients in a second order parabolic linear stochastic partial differential equation (SPDE) are estimated from multiple spatially localised measurements. Assuming that the spatial resolution tends to zero and the number of…

统计理论 · 数学 2024-07-26 Randolf Altmeyer , Anton Tiepner , Martin Wahl

We investigate the decay rates of correlations for nonuniformly hyperbolic systems with or without singularities, on piecewise H\"older observables. By constructing a new scheme of coupling methods using the probability renewal theory, we…

动力系统 · 数学 2019-06-28 Sandro Vaienti , Hong-Kun Zhang

We consider the initial value problem of the compressible Navier-Stokes-Korteweg equations in the whole space $\mathbb{R}^d$ ($d \ge 2$). The purposes of this paper are to obtain the global-in-time solution around the constant equilibrium…

偏微分方程分析 · 数学 2025-06-03 Takayuki Kobayashi , Ryosuke Nakasato

In this paper, we investigate the energy decay of hyperbolic systems of wave-wave, wave-Euler- Bernoulli beam and beam-beam types. The two equations are coupled through boundary connection with only one localized non-smooth fractional…

偏微分方程分析 · 数学 2021-05-18 Mohammad Akil , Ibtissam Issa , Ali Wehbe

In this paper, we present a new approach to obtain so-called damping estimates for self-similar solutions to general hyperbolic relaxation systems applying the method of characteristics. Such damping estimates are an important part of the…

偏微分方程分析 · 数学 2026-05-01 Johannes Bärlin

We consider the compressible Navier-Stokes-Korteweg system describing the dynamics of a liquid-vapor mixture with diffuse interphase. The global solutions are established under linear stability conditions in critical Besov spaces. In…

偏微分方程分析 · 数学 2019-05-22 Noboru Chikami , Takayuki Kobayashi

We discuss optimal estimates of solutions to the compressible Navier-Stokes equations in Besov norms. In particular, we consider the estimate of the curl-free part of the solution to the linearised equations, in the homogeneous case. We…

偏微分方程分析 · 数学 2023-03-14 Tsukasa Iwabuchi , Dáithí Ó hAodha

In the present paper, we consider the initial value problem for the bipolar Vlasov-Poisson-Boltzmann (bVPB) system and its corresponding modified Vlasov-Poisson-Boltzmann (mVPB). We give the spectrum analysis on the linearized bVPB and mVPB…

偏微分方程分析 · 数学 2014-11-21 Hai-Liang Li , Tong Yang , Mingying Zhong

This paper is devoted to establishing the optimal decay rate of the global large solution to compressible nematic liquid crystal equations when the initial perturbation is large and belongs to $L^1(\mathbb R^3)\cap H^2(\mathbb R^3)$. More…

偏微分方程分析 · 数学 2021-06-08 Jincheng Gao , Zhengzhen Wei , Zheng-an Yao

In this paper, we consider the full compressible, viscous, non-resistive MHD system under the assumption that the fluids move on a plane while the magnetic field is oriented vertically. Within the framework of Besov spaces, by introducing…

偏微分方程分析 · 数学 2024-08-15 Xiaoping Zhai , Shunhang Zhang

Under a precise nonlinearity-diffusivity condition we establish the decay of space-periodic entropy solutions of a multidimensional degenerate nonlinear parabolic equation.

偏微分方程分析 · 数学 2019-01-17 Evgeniy Yu. Panov

New local smoothing estimates in Besov spaces adapted to the half-wave group are proved via $\ell^2$-decoupling. We apply these estimates to obtain new well-posedness results for the cubic nonlinear wave equation in two dimensions. The…

偏微分方程分析 · 数学 2026-05-20 Jan Rozendaal , Robert Schippa

We introduce a new method which resolves the problem of regularity and compactness of entropy solutions for nonlinear degenerate parabolic equations under non-degeneracy conditions on the sphere. In particular, we address a problem of…

偏微分方程分析 · 数学 2023-09-06 Marko Erceg , Darko Mitrović

We consider degenerate Kirchhoff equations with a small parameter epsilon in front of the second-order time-derivative. It is well known that these equations admit global solutions when epsilon is small enough, and that these solutions…

偏微分方程分析 · 数学 2011-08-19 Marina Ghisi , Massimo Gobbino

This paper is concerned with the multi-dimensional compressible Euler equations with time-dependent over-damping of the form $-\frac{\mu}{(1+t)^\lambda}\rho\boldsymbol u$ in $\mathbb R^n$, where $n\ge2$, $\mu>0$, and $\lambda\in[-1,0)$.…

偏微分方程分析 · 数学 2020-06-02 Shanming Ji , Ming Mei

Numerical models of weather and climate critically depend on long-term stability of integrators for systems of hyperbolic conservation laws. While such stability is often obtained from (physical or numerical) dissipation terms, physical…