Search Results - "Pellegrini, Clément"
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Continuous Time Open Quantum Random Walks and Non-Markovian Lindblad Master Equations
Published in Journal of statistical physics (01-02-2014)“…A new type of quantum random walks, called Open Quantum Random Walks , has been developed and studied in Attal et al. (Open quantum random walks, preprint) and…”
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Large Time Behavior and Convergence Rate for Quantum Filters Under Standard Non Demolition Conditions
Published in Communications in mathematical physics (01-10-2014)“…A quantum system S undergoing continuous time measurement is usually described by a jump-diffusion stochastic differential equation. Such an equation is called…”
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The asymmetric quantum cloning region
Published in Letters in mathematical physics (26-06-2023)“…Quantum cloning is a fundamental protocol of quantum information theory. Perfect universal quantum cloning is prohibited by the laws of quantum mechanics, only…”
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Emergence of Jumps in Quantum Trajectories via Homogenization
Published in Communications in mathematical physics (01-11-2021)“…In the strong noise regime, we study the homogenization of quantum trajectories i.e. stochastic processes appearing in the context of quantum measurement. When…”
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Limit theorems for quantum trajectories
Published in Stochastic processes and their applications (01-10-2023)“…Quantum trajectories are Markov processes modeling the evolution of a quantum system subjected to repeated independent measurements. Under purification and…”
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Existence, Uniqueness and Approximation of a Stochastic Schrödinger Equation: The Diffusive Case
Published in The Annals of probability (01-11-2008)“…Recent developments in quantum physics make heavy use of so-called "quantum trajectories." Mathematically, this theory gives rise to "stochastic Schrödinger…”
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A geometrical description of the universal 1→2 asymmetric quantum cloning region
Published in Quantum information processing (01-10-2021)“…We consider the problem of determining the achievable region of the universal 1 → 2 asymmetric quantum cloning problem. This concerns the quantum cloning of…”
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Exponential Stability of Subspaces for Quantum Stochastic Master Equations
Published in Annales Henri Poincaré (01-06-2017)“…We study the stability of quantum pure states and, more generally, subspaces for stochastic dynamics that describe continuously monitored systems. We show that…”
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Existence, uniqueness and approximation of the jump-type stochastic Schrödinger equation for two-level systems
Published in Stochastic processes and their applications (01-08-2010)“…In quantum physics, recent investigations deal with the so-called “stochastic Schrödinger equations” theory. This concerns stochastic differential equations of…”
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Algebra of Nonlocal Boxes and the Collapse of Communication Complexity
Published in Quantum (Vienna, Austria) (10-07-2024)“…Communication complexity quantifies how difficult it is for two distant computers to evaluate a function f ( X , Y ) , where the strings X and Y are…”
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Random repeated quantum interactions and random invariant states
Published in Probability theory and related fields (01-02-2012)“…We consider a generalized model of repeated quantum interactions, where a system is interacting in a random way with a sequence of independent quantum systems…”
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Existence, uniqueness and approximation of a stochastic Schrödinger equation: The diffusive case
Published in The Annals of probability (01-11-2008)Get full text
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Quantum non demolition measurements: Parameter estimation for mixtures of multinomials
Published in Electronic journal of statistics (01-01-2018)“…In Quantum Non Demolition measurements, the sequence of observations is distributed as a mixture of multinomial random variables. Parameters of the dynamics…”
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Poisson and Diffusion Approximation of Stochastic Master Equations with Control
Published in Annales Henri Poincaré (01-08-2009)“…Quantum Trajectories are solutions of stochastic differential equations. Such equations are called Stochastic Master Equations and describe random phenomena in…”
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Large deviation principle for invariant distributions of memory gradient diffusions
Published in Electronic journal of probability (06-09-2013)“…In this paper, we consider a class of diffusion processes based on a memory gradient descent, i.e. whose drift term is built as the average all along the past…”
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Quantum trajectories: Memory and continuous observation
Published in Physical review. A, Atomic, molecular, and optical physics (14-12-2012)Get full text
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Random pure quantum states via unitary Brownian motion
Published in Electronic communications in probability (2013)“…We introduce a new family of probability distributions on the set of pure states of a finite dimensional quantum system. Without any a priori assumptions, the…”
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Parameter Estimation for Quantum Trajectories: Convergence Result
Published in 2022 IEEE 61st Conference on Decision and Control (CDC) (06-12-2022)“…Quantum trajectories describe the evolution of quantum systems undergoing indirect measurement. In the discrete-time setting, the state of the system is…”
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A geometrical description of the universal $$1 \rightarrow 2$$ asymmetric quantum cloning region
Published in Quantum information processing (01-10-2021)Get full text
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Spiking and collapsing in large noise limits of SDEs
Published in The Annals of applied probability (01-02-2023)“…We analyze the strong noise limit of one-dimensional stochastic differential equations (SDEs). Our initial motivation comes from continuous measurements of…”
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