4 papers
Reliable Sample-Level Quantum Error Mitigation via Dominance-Aware Clustering
Mohsen Ghodrati, Kausthubh Chandramouli, Dror Baron
Many quantum algorithms for classically difficult optimization tasks must return high-quality bitstrings from finitely many circuit executions, whereas most quantum error-mitigatio…
A Provable Oracle-Free Quantum Algorithm for Nonlinear Dynamics on Hybrid Oscillator-Qubit Processors
Kausthubh Chandramouli, Yan Li, Yuan Liu
We develop a hybrid qubit--qumode algorithm for nonlinear ordinary differential equations of the form with drift of polynomial degree~.…
Approximate Message Passing for Quantum State Tomography
Noah Siekierski, Kausthubh Chandramouli, Christian Kümmerle +2
Quantum state tomography (QST) is an indispensable tool for characterizing many-body quantum systems. However, due to the exponential scaling of the cost of the protocol with syste…
Statistical Signal Processing for Quantum Error Mitigation
Kausthubh Chandramouli, Kelly Mae Allen, Christopher Mori +2
In the noisy intermediate-scale quantum (NISQ) era, quantum error mitigation (QEM) is essential for producing reliable outputs from quantum circuits. We present a statistical signa…