Search Results - "Sarlette, Alain"
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Exponential suppression of bit-flips in a qubit encoded in an oscillator
Published in Nature physics (01-05-2020)“…A quantum system interacts with its environment—if ever so slightly—no matter how much care is put into isolating it 1 . Therefore, quantum bits undergo…”
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Combined Dissipative and Hamiltonian Confinement of Cat Qubits
Published in PRX quantum (20-05-2022)“…Quantum error correction with biased-noised qubits can drastically reduce the hardware overhead for universal and fault-tolerant quantum computation. Cat…”
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Accelerating Consensus by Spectral Clustering and Polynomial Filters
Published in IEEE transactions on control of network systems (01-09-2017)“…It is known that polynomial filtering can accelerate the convergence toward average consensus on an undirected network. In this paper, the gain of a…”
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Designing High-Fidelity Zeno Gates for Dissipative Cat Qubits
Published in PRX quantum (01-10-2023)“…Bosonic cat qubits stabilized with a driven two-photon dissipation are systems with exponentially biased noise, opening the door to low-overhead,…”
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5
Robust sparse IQP sampling in constant depth
Published in Quantum (Vienna, Austria) (06-05-2024)“…Between NISQ (noisy intermediate scale quantum) approaches without any proof of robust quantum advantage and fully fault-tolerant quantum computation, we…”
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Multiplexed Photon Number Measurement
Published in Physical review. X (01-08-2021)“…When a two-level system—a qubit—is used as a probe of a larger system, it naturally leads to answering a single yes-no question about the system state. Here we…”
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Modified Integral Control Globally Counters Symmetry-Breaking Biases
Published in Symmetry (Basel) (01-05-2019)“…We propose a modified integral controller to treat actuation biases in nonholonomic systems. In such systems, although one cannot directly counter biases along…”
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Adding a Single State Memory Optimally Accelerates Symmetric Linear Maps
Published in IEEE transactions on automatic control (01-11-2016)“…Previous papers have proposed to add memory registers to the dynamics of discrete-time linear systems in order to accelerate their convergence. In particular,…”
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Toward a Comprehensive Impossibility Result for String Stability
Published in IEEE transactions on automatic control (01-04-2020)“…We provide a comprehensive impossibility result toward achieving string stability, i.e., keeping local relative errors in check with local controllers…”
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Towards a comprehensive impossibility result for string stability
Published in IEEE transactions on automatic control (04-12-2019)“…We provide a comprehensive impossibility result towards achieving string stability, i.e. keeping local relative errors in check with local controllers…”
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Exponential stabilization of quantum systems under continuous non-demolition measurements
Published in Automatica (Oxford) (01-02-2020)“…We present a novel continuous-time control strategy to exponentially stabilize an eigenstate of a quantum measurement operator. In open-loop, the system…”
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About string stability of a vehicle chain with unidirectional controller
Published in European journal of control (01-11-2019)“…This paper deals with the problem of string stability in a chain of acceleration-controlled vehicles. It is known that string stability cannot be achieved,…”
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13
Loss-tolerant parity measurement for distant quantum bits
Published in Physical review. A, Atomic, molecular, and optical physics (27-03-2017)“…We propose a scheme to measure the parity of two distant qubits, while ensuring that losses on the quantum channel between them does not destroy coherences…”
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14
Consensus for Quantum Networks: Symmetry From Gossip Interactions
Published in IEEE transactions on automatic control (01-01-2015)“…This paper extends the consensus framework, widely studied in the literature on distributed computing and control algorithms, to networks of quantum systems…”
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Quantum dynamical decoupling by shaking the close environment
Published in Journal of the Franklin Institute (01-11-2023)Get full text
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Characterizing limits and opportunities in speeding up Markov chain mixing
Published in Stochastic processes and their applications (01-06-2021)“…A variety of paradigms have been proposed to speed up Markov chain mixing, ranging from non-backtracking random walks to simulated annealing and lifted…”
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Quantum dynamical decoupling by shaking the close environment
Published in Journal of the Franklin Institute (13-08-2022)“…Quantum dynamical decoupling is a procedure to cancel the effective coupling between two systems by applying sequences of fast actuations, under which the…”
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Deterministic submanifolds for the backward‐evolving quantum state concerning a monitored qubit
Published in IET control theory & applications (01-01-2023)“…The evolution of a quantum system subject to continuous weak measurement is described by a stochastic differential equation (SDE). It has been shown that the…”
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Autonomous rigid body attitude synchronization
Published in Automatica (Oxford) (01-02-2009)“…Control laws to synchronize attitudes in a swarm of fully actuated rigid bodies, in the absence of a common reference attitude or hierarchy in the swarm, are…”
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Integral control on Lie groups
Published in Systems & control letters (01-06-2015)“…In this paper, we extend the popular integral control technique to systems evolving on Lie groups. More explicitly, we provide an alternative definition of…”
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