Xi Chen
@xichen_STA
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Senior Scientist (Investigador Científico) @icmm_csic
Madrid, Spain
Joined March 2021
Our paper “Quantum active learning” finally comes out. Great collaboration among @jonzen_Physics @QuantumYue @qmisanz @JoseDMartin_UV @NquireC @icmm_csic.
journals.aps.org
Quantum machine learning (QML), as an extension of classical machine learning that harnesses quantum mechanics, facilitates efficient learning from data encoded in quantum states. Training a quantum...
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@MDPI @quantum_mads We enjoyed an exciting program filled with insightful talks and engaging discussions, covering the latest advances in quantum information, quantum simulation, and topological phases of matter, . .
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Many thanks to all the speakers, poster presenters, attendees for their outstanding contributions, and to ICMM-CSIC, the sponsors for their generous support that made this event possible. Looking forward to seeing you again in the near future! @MDPI Entropy @quantum_mads.
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The 9th International Conference on Quantum Information, Spacetime Simulation, and Quantum Topological Matter (QuIST IX) was successfully held at @icmm_csic
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Conference QuIST IX @icmm_csic is ready! .Welcome to Madrid and see you next week. See more details: .
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We warmly welcome @shuo_yen @NCKU_official to our institute @icmm_csic. We look forward to launching the bilateral international project between @CSIC_VRI and NSTC.
Seminar: Shortcuts to Adiabaticity in Silicon Photonics Devices, by Shuo-Yen Tseng.
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We introduce a novel method (AC-QUDIT) for achieving high-fidelity transport of quantum wavepackets in the presence of dissipation and leakage to the continuum. @icmm_csic Thanks for all collaborators.
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Give a talk on optimal control of open system and improved qubit readout in circuit QED @QuantumConf 2025, Grenoble, France.
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We propose alternative shortcuts to adiabaticity for optimal quantum control. We hope experimentalists may find this approach useful for implementing faster ion transport or Grover’s search algorithm.
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Finally the paper on superoscillating for quantum control has been published @PhysRevA @icmm_csic @NquireC @jonzen_Physics
journals.aps.org
Superoscillation is a counterintuitive phenomenon for its mathematical feature of faster than Fourier, which has allowed novel optical imaging beyond the diffraction limit. In this article we...
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New paper in #JHEP. We investigate the role of quantum scrambling in quantum batteries and its effects on optimal power and charging times within the SYK model. @icmm_csic @NquireC @QuantumYue @jonzen_Physics and Sebastian.
link.springer.com
Journal of High Energy Physics - Exponentially fast scrambling of an initial state characterizes quantum chaotic systems. Given the importance of quickly populating higher energy levels from...
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Welcome to our group @icmm_csic JAEINT25_EX_1362.Quantum Neural Networks for Density Functional Theory Simulations in 2D Materials.BAN , YUE @QuantumYue . JAEINT25_EX_0270.Physics-Informed Neural Networks for Quantum Optimal Control.CHEN , XI @xichen_STA.
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New paper published @PhysRevA ! Variational quantum compiling for three-qubit-gate design in quantum dots @icmm_csic.
journals.aps.org
Semiconductor quantum dots provide a promising platform for spin qubit manipulation and quantum logic gate implementation, which are essential for scalable quantum computing architectures. In this...
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🔔 The 9th International Conference on Quantum Information, Spacetime Simulation, and Quantum Topological Matter (QuIST IX) will take place on July, 8 - 11 @icmm_csic !.🦸 Invited speakers continue to be updated.📣 Full info and application: 👋 Welcome！
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By using four distinct schemes—QAOA, DC-QAOA, CD-inspired, and CD-mixer ansatz—we demonstrate a reduction in quantum resource requirements while maintaining high solution accuracy. Thanks the collaboration among @ruoqian0103 @lemondsej @QuantumYue and Sebastian @KipuQuantum.
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We share our new work on bin packing problem (bpp) on This represents the application of a VQA to solve a bpp instance exceeding 10 items, marking quantum computing useful for real-world logistics and resource allocation tasks.@icmm_csic
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I am delighted to have been invited to visit the Department of Física de la Materia Condensada @unicomplutense . Our discussions were truly inspiring and enlightening! Thanks the hospitality of Fernando Sols and Charles Creffield.
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