10 papers
Execution-transcript privacy for fault-tolerant surface-code memories
Jiachen Shen, Hui Zhong
A fault-tolerant quantum computer runs behind a telemetry stream logging syndromes, decoder actions, resets and timing separately from the answer. Can it reveal the logical input?…
Capability-Gated Conformance Testing of Quantum Error-Correction Decoder Libraries
Jiachen Shen, Hui Zhong
A quantum error correction decoder is a library other people's results depend on, judged in one dominant way. Sample errors, decode, and count wrong logical observables. We ask wha…
The resource cost of magic in a code block
Jiachen Shen, Hui Zhong
We bound the magic of a post-selected logical measurement by the resource that produced it. The setting is one code block with one logical qubit and an adaptive protocol that measu…
Explicit Separators for Consecutive Levels of Parrilo's Sum-of-Squares Hierarchy over the Copositive Cone
Jiachen Shen, Hui Zhong
Parrilo's cones $\Kc{n}{r}$ form a nested sequence of semidefinite-representable inner approximations of the copositive cone $\COP_n$. For their union is all of $\COP_5$, yet…
A conditional no-go for resource-free magic-axis measurement on a static surface code
Jiachen Shen, Hui Zhong
Under stated assumptions, a static surface-code patch that adds no fold or \mbox{self-dual} structure cannot perform the magic-axis check that magic-state cultivation relies on whi…
Grid-Interactive Thermal Management of AI Data Centers via Contextual Distributionally Robust Optimization
Jiachen Shen, Jian Shi, Yijie Yang +4
Thermal management in AI data centers is increasingly challenged by bursty workloads and uncertain heat generation. To prevent thermal violations, existing cooling strategies eithe…
Will the Carbon Border Adjustment Mechanism Impact European Electricity Prices? A GNN-Based Network Analysis
Jiachen Shen, Jian Shi, Dan Wang +1
The European Union's Carbon Border Adjustment Mechanism (CBAM) creates a complex challenge for the interconnected European electricity market. Traditional static analyses often mis…
UNIQ: Communication-Efficient Distributed Quantum Computing via Unified Nonlinear Integer Programming
Hui Zhong, Jiachen Shen, Lei Fan +4
Distributed quantum computing (DQC) is widely regarded as a promising approach to overcome quantum hardware limitations. A major challenge in DQC lies in reducing the communication…
Strategic Decision-Making Under Uncertainty through Bi-Level Game Theory and Distributionally Robust Optimization
Jiachen Shen, Jian Shi, Lei Fan +4
In strategic scenarios where decision-makers operate at different hierarchical levels, traditional optimization methods are often inadequate for handling uncertainties from incompl…
Differential Privacy Preserving Distributed Quantum Computing
Hui Zhong, Keyi Ju, Jiachen Shen +5
Existing quantum computers can only operate with hundreds of qubits in the Noisy Intermediate-Scale Quantum (NISQ) state, while quantum distributed computing (QDC) is regarded as a…