Gunhee Park 박건희 朴健熙

PhD at @Caltech,
Tensor Networks, Open quantum systems, Quantum Dynamics
Garnet Chan group

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@sinibandro @philipVinc @gppcarleo Congratulations! Nice work

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

https://t.co/Fg9jjEAHtj

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!

[John Preskill @preskill]

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.

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@Srijan_bh @AndresMonCas Congratulations 🎊

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

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

[SijingDu @SijingDu52]

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. https://t.co/G7QwcjWNfb

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@YongtaoZhan Congratulations

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

🔧 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.

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

🚀 New Paper on arXiv!
I’m excited to share our latest work:
“Coupled Lindblad pseudomode theory for simulating open quantum systems”
https://t.co/6ajwTKANPM
with Zhen Huang, Garnet Chan, and Lin Lin

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

🔍 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.

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@CSenrui Nice work!

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@JiaqingJ @yiyiicai @YT59529321 Congratulations 👍

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

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

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@_ikany 내가 요즘 이것때문에 고민 ㅜ 연구 외의 자아가 없어졌어

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@JiaqingJ Congratulations 🎊

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@k_tsubo_ Congratulations!

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@CSenrui Congratulations!

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

@QMiao_PhD Thanks!!

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

🚀 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).

https://t.co/k8Wypj8FVA

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

📊 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!
https://t.co/k8Wypj8FVA

[Gunhee Park 박건희 朴健熙 @quantumgunhee]

🧩 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.