10 papers
Noise-Resilient Quantum Evolution in Open Systems through Error-Correcting Frameworks
Nirupam Basak, Goutam Paul, Pritam Chattopadhyay
We analyze quantum state preservation in open quantum systems using quantum error-correcting (QEC) codes explicitly embedded in microscopic system-bath models. Rather than assuming…
Quantum Approximate Optimization for Decoding of Low-Density Parity-Check Codes
Krishnakanta Barik, Goutam Paul
Decoding Low-Density Parity-Check (LDPC) codes is a fundamental problem in coding theory, and Belief Propagation (BP) is one of the most popular methods for LDPC code decoding. How…
Faster Optimal Decoder for Graph Codes with a Single Logical Qubit
Nirupam Basak, Goutam Paul
In this work, we develop an efficient decoding method for graph codes, a class of stabilizer quantum error-correcting codes constructed from graph states. While optimal decoding is…
Hierarchical quantum decoders
Nirupam Basak, Ankith Mohan, Andrew Tanggara +3
Decoders are a critical component of fault-tolerant quantum computing. They must identify errors based on syndrome measurements to correct quantum states. While finding the optimal…
Quantum Temporal Fusion Transformer
Krishnakanta Barik, Goutam Paul
The \textit{Temporal Fusion Transformer} (TFT), proposed by Lim \textit{et al.}, published in \textit{International Journal of Forecasting} (2021), is a state-of-the-art attention-…
Evaluating Quantumness, Efficiency and Cost of Quantum Random Number Generators via Photon Statistics
Goutam Paul, Nirupam Basak, Soumya Das
This work presents two significant contributions from the perspectives of quantum random number generator (QRNG) manufacturers and users. For manufacturers, the conventional method…