Gunhee Park 박건희 朴健熙

@sinibandro @philipVinc @gppcarleo Congratulations! Nice work

Beyond excited that our paper on the global method for quantum dynamics with NQS has been published in PRL! With D. Hendry, @philipVinc, and @gppcarleo. link.aps.org/doi/10.1103/kq…

lnkd.in/gWy-2XvY Excited to share that our work on "Simulating quantum dynamics in two-dimensional lattices with tensor network influence functional belief propagation" is now accepted in the Physical Review B Journal!

The annual @IQIM_Caltech retreat at Lake Arrowhead is an opportunity to spend the weekend with some of my favorite scientists. It is always an uplifting and illuminating experience.

@Srijan_bh @AndresMonCas Congratulations 🎊

Honored to receive the award. Thanks for all the support @AndresMonCas

Presenting a poster on influence functional belief propagation at Telluride summer school

Late advertisement of our new work on a novel hybrid method of combing fermionic tensor networks and neural networks for tackling fermionic ground state problems. arxiv.org/abs/2506.08329

@YongtaoZhan Congratulations

Our work on the mixing time of weakly interacting fermions just got published in PRX Quantum😊

🔧 The CPTP property is particularly important when implementing dynamics on quantum hardware through a quantum channel. Our framework opens a path to efficient quantum simulations of open quantum systems in near-term quantum platforms, such as trapped-ion ⚛️ devices.

🔍 This time, we ask: Can we retain that efficiency without giving up the CP condition? ✅ The answer is yes - by introducing couplings between pseudomodes, we construct the coupled Lindblad pseudomode framework, which preserves the CPTP condition.

🚀 New Paper on arXiv! I’m excited to share our latest work: “Coupled Lindblad pseudomode theory for simulating open quantum systems” arxiv.org/abs/2506.10308 with Zhen Huang, Garnet Chan, and Lin Lin

@CSenrui Nice work!

🪇Disambiguating Pauli noise in quantum computers scirate.com/arxiv/2505.226… Quantum noise characterization suffers from "gauge ambiguity" due to noisy initialization and measurements. We show this does not stop us from correctly mitigating errors, with up to 92-qubit experiments

@JiaqingJ @yiyiicai @YT59529321 Congratulations 👍

With Akshar, @yiyiicai, and @YT59529321 we prove high-temperature fermionic Gibbs state is a probabilistic distribution over Gaussian states. Very proud of Akshar and Yiyi --- undergraduates at Caltech! My first experience working with undergraduates! scirate.com/arxiv/2505.097…

@ucsd_yuen @Arghadi72821613 @PhysRevLett Very pretty cover! Is it made with Blender?

Excited to see the art made by @arghadi72821613 on the cover of @PhysRevLett week 😊 journals.aps.org/prl/

@_ikany 내가 요즘 이것때문에 고민 ㅜ 연구 외의 자아가 없어졌어

생각할수록 수학으로 밥 벌먹고 살기 위해서 아이큐 상상력 언어능력 정치력 이런 거 다 필요없고 >>수학 말고 다른 걸 할 줄 모르기<< 역시 이게 제일 중요한 능력인 듯 무려 후천적으로도 키울 수 있음

@JiaqingJ Congratulations 🎊

The paper “Local Hamiltonian problem with succinct ground state is MA complete” is published on PRX-Quantum. Thanks to the anonymous reviewers, this version contains a significantly simpler proof for the discrete-time case!

@k_tsubo_ Congratulations!

@CSenrui Congratulations!

I defended my PhD dissertation today!! 🍾🎓⚛️ Thank you to everyone who supported me along this wonderful journey.

@QMiao_PhD Thanks!!

@quantumgunhee Congratulations!

🚀 New paper out on arXiv! We developed a tensor network algorithm to simulate quantum dynamics in 2D lattices, combining the concept of tensor network influence functional (TN-IF) and belief propagation (BP). arxiv.org/abs/2504.07344

📊 With this new method, we benchmarked against recent IBM experiments on kicked Ising dynamics (heavy-hex lattice) and simulated 2D TFIM quenches on square lattices—capturing long-time dynamics beyond the reach of traditional methods! arxiv.org/abs/2504.07344

🧩 BP works well on tree-like lattices—but on 2D square lattices, loops introduce errors. To go beyond this BP limit, we developed a cluster expansion for IF-BP that systematically captures loop-induced correlations.