92 citations · 967 across the 33 of their papers we have counts for
29 papers · 1 filter
Giant-cavity-based quantum sensors with enhanced performance
Yu Ting Zhu, Rebing Wu, Zhihui Peng +1
Recent progresses have revealed that quantum systems with multiple position-dependent couplings, e.g., giant atoms, can exhibit some unconventional phenomena, such as non-exponenti…
Robust resource-efficient quantum variational ansatz through evolutionary algorithm
Yuhan Huang, Qingyu Li, Xiaokai Hou +4
Variational quantum algorithms (VQAs) are promising methods to demonstrate quantum advantage on near-term devices as the required resources are divided between a quantum simulator…
An inverse-system method for identification of damping rate functions in non-Markovian quantum systems
Shibei Xue, Lingyu Tan, Rebing Wu +2
Identification of complicated quantum environments lies in the core of quantum engineering, which systematically constructs an environment model with the aim of accurate control of…
Robust Quantum Control in Games: an Adversarial Learning Approach
Xiaozhen Ge, Haijin Ding, Herschel Rabitz +1
High-precision operation of quantum computing systems must be robust to uncertainties and noises in the quantum hardware. In this paper, we show that through a game played between…
Identification of Time-varying in situ Signals in Quantum Circuits
Xi Cao, Yu-xi Liu, Rebing Wu
The identification of time-varying \textit{in situ} signals is crucial for characterizing the dynamics of quantum processes occurring in highly isolated environments. Under certain…
A gradient algorithm for Hamiltonian identification of open quantum systems
Shibei Xue, Rebing Wu, Dewei Li +1
In this paper, we present a gradient algorithm for identifying unknown parameters in an open quantum system from the measurements of time traces of local observables. The open syst…
Learning to Calibrate Quantum Control Pulses by Iterative Deconvolution
Xi Cao, Bing Chu, Haijin Ding +3
In experimental control of quantum systems, the precision is often hindered by imperfect applied electronics that distort control pulses delivered to target quantum devices. To mit…
Quantum Control Landscapes Are Almost Always Trap Free
Benjamin Russell, Herschel Rabitz, Rebing Wu
A proof that almost all quantum systems have trap free (that is, free from local optima) landscapes is presented for a large and physically general class of quantum system. This re…
Minimum-Time Selective Control of Homonuclear Spins
Tian-Ming Zhang, Re-Bing Wu, Fei-Hao Zhang +2
In NMR (Nuclear Magnetic Resonance) quantum computation, the selective control of multiple homonuclear spins is usually slow because their resonance frequencies are very close to e…
Fast Quantum Communication in Linear Networks
Kurt Jacobs, Rebing Wu, Xiaoting Wang +3
Here we consider the speed at which quantum information can be transferred between the nodes of a linear network. Because such nodes are linear oscillators, this speed is also impo…
Quantum Control Landscapes Beyond the Dipole Approximation
Benjamin Russell, Herschel Rabitz, Rebing Wu
We investigate the control landscapes of closed, finite level quantum systems beyond the dipole approximation by including a polarizability term in the Hamiltonian. Theoretical ana…
Characterization of control noise effects in optimal quantum unitary dynamics
David Hocker, Constantin Brif, Matthew D. Grace +5
This work develops measures for quantifying the effects of field noise upon targeted unitary transformations. Robustness to noise is assessed in the framework of the quantum contro…
Two-qubit gate operations in superconducting circuits with strong coupling and weak anharmonicity
Xin-You Lü, S. Ashhab, Wei Cui +2
We investigate theoretically the implementation of two-qubit gates in a system of two coupled superconducting qubits. In particular, we analyze two-qubit gate operations under the…
Exploring the trade-off between fidelity- and time-optimal control of quantum unitary transformations
Katharine W. Moore Tibbetts, Constantin Brif, Matthew D. Grace +5
Generating a unitary transformation in the shortest possible time is of practical importance to quantum information processing because it helps to reduce decoherence effects and im…
Comment on "Are There Traps in Quantum Control Landscapes?"
Herschel Rabitz, Tak-San Ho, Ruixing Long +2
Many quantum control problems are formulated as a search for an optimal field that maximizes a physical objective. This search is performed over a landscape defined as the objectiv…
Quantum Coherent Nonlinear Feedbacks with Applications to Quantum Optics on Chip
Jing Zhang, Re-Bing Wu, Yu-xi Liu +2
In the control of classical mechanical systems, the feedback has been successfully applied to the production of the desired nonlinear dynamics. However, how much this can be done i…
Fidelity Between Unitary Operators and the Generation of Gates Robust Against Off-Resonance Perturbations
Renan Cabrera, Ofer M. Shir, Rebing Wu +1
We perform a functional expansion of the fidelity between two unitary matrices in order to find the necessary conditions for the robust implementation of a target gate. Comparison…
General unifying features of controlled quantum phenomena
Alexander Pechen, Constantin Brif, Rebing Wu +2
Many proposals have been put forth for controlling quantum phenomena, including open-loop, adaptive feedback, and real-time feedback control. Each of these approaches has been view…
Singularities of Quantum Control Landscapes
Rebing Wu, Jason Dominy, Tak-San Ho +1
A quantum control landscape is defined as the objective to be optimized as a function of the control variables. Existing empirical and theoretical studies reveal that most realisti…
The Optimal Control Landscape for the Generation of Unitary Transformations with Constrained Dynamics
Michael Hsieh, Rebing Wu, Herschel Rabitz +1
The reliable and precise generation of quantum unitary transformations is essential to the realization of a number of fundamental objectives, such as quantum control and quantum in…
Control of quantum dynamics by optimized measurements
Feng Shuang, Mianlai Zhou, Alexander Pechen +3
Quantum measurements are considered for optimal control of quantum dynamics with instantaneous and continuous observations utilized to manipulate population transfer. With an optim…
Quantum Pareto Optimal Control
Raj Chakrabarti, Rebing Wu, Herschel Rabitz
We describe algorithms, and experimental strategies, for the Pareto optimal control problem of simultaneously driving an arbitrary number of quantum observable expectation values t…
Quantum Multiobservable Control
Raj Chakrabarti, Rebing Wu, Herschel Rabitz
We present deterministic algorithms for the simultaneous control of an arbitrary number of quantum observables. Unlike optimal control approaches based on cost function optimizatio…
Control landscapes for two-level open quantum systems
Alexander Pechen, Dmitrii Prokhorenko, Rebing Wu +1
A quantum control landscape is defined as the physical objective as a function of the control variables. In this paper the control landscapes for two-level open quantum systems, wh…