61 citations · 409 across the 28 of their papers we have counts for
28 papers
Multi-level Random-Telegraph Noise Mitigation using a Single Spectator Qubit
Yanan Liu, Hongting Song, Areeya Chantasri +1
Preserving quantum coherence in the presence of environmental noise is one of the principal challenges for quantum technologies. Noise mitigation using spectator qubits (SQs) has r…
Time-dependent multiparameter estimation for quantum experiments via online-offline sequential Monte-Carlo method
Chattamas Manoworakul, Jason F. Ralph, Nattaphong Wonglakhon +1
While typical online estimation methods can estimate the multiparameter dynamics of many systems, they may not be sufficient for a system with highly noisy measurement and rapid de…
Quantum trajectories for time-binned data and their closeness to fully conditioned quantum trajectories
Nattaphong Wonglakhon, Areeya Chantasri, Howard M. Wiseman
Quantum trajectories are dynamical equations for quantum states conditioned on the results of a time-continuous measurement, such as a continuous-in-time current . Recent…
Tracking Quantum Dynamics in an Optical Cavity for Recovering Purity and Squeezing via Quantum State Smoothing
Shota Yokoyama, Kiarn T. Laverick, David McManus +6
Tracking the dynamics of a quantum system is conventionally achieved by monitoring the system continuously in time and filtering the information contained in measurement records vi…
Graybox characterization and calibration with finite-shot estimation on superconducting-qubit experiments
Poramet Pathumsoot, Areeya Chantasri, Michal Hajdušek +1
Characterization and calibration of quantum devices are necessary steps to achieve fault-tolerant quantum computing. As quantum devices become more sophisticated, it is increasingl…
Quantum state smoothing when Alice assumes the wrong type of monitoring by Bob
Areeya Chantasri, Kiarn T. Laverick, Howard M. Wiseman
An open quantum system leaks information into its environment. In some circumstances it is possible for an observer, say Alice, to recover that information, as a classical measurem…
Inequivalent ways to apply semi-classical smoothing to a quantum system
Kiarn T. Laverick, Areeya Chantasri, Howard M. Wiseman
In this paper, we correct a mistake we made in [Phys. Rev. Lett. , 190402 (2019)] and [Phys. Rev. A , 012213 (2021)] regarding the Wigner function of th…
Imperfection analyses for random-telegraph-noise mitigation using spectator qubits
Y. Liu, A. Chantasri, H. Song +1
Spectator qubits (SQs) for random-telegraph noise mitigation have been proposed by Song et al., Phys. Rev. A, 107, L030601 (2023), where an SQ operates as a noise probe to estimate…
Completely positive trace-preserving maps for higher-order unraveling of Lindblad master equations
Nattaphong Wonglakhon, Howard M. Wiseman, Areeya Chantasri
Theoretical tools used in processing continuous measurement records from real experiments to obtain quantum trajectories can easily lead to numerical errors due to a non-infinitesi…
Quantum state smoothing cannot be assumed classical even when the filtering and retrofiltering are classical
Kiarn T. Laverick, Prahlad Warszawski, Areeya Chantasri +1
State smoothing is a technique to estimate a state at a particular time, conditioned on information obtained both before (past) and after (future) that time. For a classical system…
Quantum state-preparation control in noisy environment via most-likely paths
Wirawat Kokaew, Thiparat Chotibut, Areeya Chantasri
Finding controls for open quantum systems needs to take into account effects from unwanted environmental noise. Since actual realizations or states of the noise are typically unkno…
Optimized mitigation of random-telegraph-noise dephasing by spectator-qubit sensing and control
Hongting Song, Areeya Chantasri, Behnam Tonekaboni +1
Spectator qubits (SQs) are a tool to mitigate noise in hard-to-access data qubits. The SQ, designed to be much more sensitive to the noise, is measured frequently, and the accumula…
Greedy versus Map-based Optimized Adaptive Algorithms for random-telegraph-noise mitigation by spectator qubits
Behnam Tonekaboni, Areeya Chantasri, Hongting Song +2
In a scenario where data-storage qubits are kept in isolation as far as possible, with minimal measurements and controls, noise mitigation can still be done using additional noise…
Unifying theory of quantum state estimation using past and future information
Areeya Chantasri, Ivonne Guevara, Kiarn T. Laverick +1
Quantum state estimation for continuously monitored dynamical systems involves assigning a quantum state to an individual system at some time, conditioned on the results of continu…
Time-delayed quantum feedback and incomplete decoherence suppression with no-knowledge measurement
Jirawat Saiphet, Sujin Suwanna, André R. R. Carvalho +1
The no-knowledge quantum feedback was proposed by Szigeti et al., Phys. Rev. Lett. 113, 020407 (2014), as a measurement-based feedback protocol for decoherence suppression for an o…
Linear Gaussian Quantum State Smoothing: Understanding the optimal unravelings for Alice to estimate Bob's state
Kiarn T. Laverick, Areeya Chantasri, Howard M. Wiseman
Quantum state smoothing is a technique to construct an estimate of the quantum state at a particular time, conditioned on a measurement record from both before and after that time.…
General criteria for quantum state smoothing with necessary and sufficient criteria for linear Gaussian quantum systems
Kiarn T. Laverick, Areeya Chantasri, Howard M. Wiseman
Quantum state smoothing is a technique for estimating the quantum state of a partially observed quantum system at time , conditioned on an entire observed measurement record (bo…
Quantum state smoothing: Why the types of observed and unobserved measurements matter
Areeya Chantasri, Ivonne Guevara, Howard M. Wiseman
We investigate the estimation technique called quantum state smoothing introduced by Guevara and Wiseman [Phys.~Rev.~Lett.~{\bf 115}, 180407 (2015)], which offers a valid quantum s…
Quantum State Smoothing for Linear Gaussian Systems
Kiarn T. Laverick, Areeya Chantasri, Howard M. Wiseman
Quantum state smoothing is a technique for assigning a valid quantum state to a partially observed dynamical system, using measurement records both prior and posterior to an estima…
Quantum state tomography with time-continuous measurements: reconstruction with resource limitations
Areeya Chantasri, Shengshi Pang, Teerawat Chalermpusitarak +1
We propose and analyze quantum state estimation (tomography) using continuous quantum measurements with resource limitations, allowing the global state of many qubits to be constru…
Simultaneous continuous measurement of non-commuting observables: quantum state correlations
Areeya Chantasri, Juan Atalaya, Shay Hacohen-Gourgy +3
We consider the temporal correlations of the quantum state of a qubit subject to simultaneous continuous measurement of two non-commuting qubit observables. Such qubit state correl…
Linear feedback stabilization of a dispersively monitored qubit
Taylor Lee Patti, Areeya Chantasri, Luis Pedro García-Pintos +2
The state of a continuously monitored qubit evolves stochastically, exhibiting competition between coherent Hamiltonian dynamics and diffusive partial collapse dynamics that follow…
Prediction and Characterization of Multiple Extremal Paths in Continuously Monitored Qubits
Philippe Lewalle, Areeya Chantasri, Andrew N. Jordan
We examine most-likely paths between initial and final states for diffusive quantum trajectories in continuously monitored pure-state qubits, obtained as extrema of a stochastic pa…
Arrow of Time for Continuous Quantum Measurement
Justin Dressel, Areeya Chantasri, Andrew N. Jordan +1
We investigate the statistical arrow of time for a quantum system being monitored by a sequence of measurements. For a continuous qubit measurement example, we demonstrate that tim…