6 papers
Quantum Codes for Generalized Amplitude-damping Noise
Sourav Dutta, Anubhab Rudra, Manav Seksaria +2
Quantum error correcting (QEC) plays a crucial role in protecting quantum information against decoherence and enabling scalable, reliable quantum computing. One of the most realist…
Entropy Estimation in Multi-Qutrit Systems via Variational and Classical Neural Networks
Sai Sakunthala Guddanti, Anil Prabhakar, Ria Rushin Joseph
We present a systematic study of von Neumann entropy estimation in multi-qutrit quantum systems using two complementary approaches: variational quantum algorithms (VQAs) and classi…
Dynamics of a Spin-Wave Active Ring Resonator Driven by Harmonic-Null Square-Wave and Unipolar 8-bit Walsh Code Modulations
Anirban Mukhopadhyay, Kaustubh Narayan, Anil Prabhakar
Spin-wave active ring resonators (SWARRs) based on yttrium iron garnet (YIG) films exhibit rich nonlinear dynamics that make them promising platforms for physical reservoir computi…
Cutting Quantum Circuits Beyond Qubits
Manav Seksaria, Anil Prabhakar
We extend quantum circuit cutting to heterogeneous registers comprising mixed-dimensional qudits. By decomposing non-local interactions into tensor products of local generalised Ge…
Correcting quantum errors one gradient step at a time
Manav Seksaria, Anil Prabhakar
In this work, we introduce a general, gradient-based method that optimises codewords for a given noise channel and fixed recovery. We do so by differentiating fidelity and descendi…
Estimating shots and variance on noisy quantum circuits
Manav Seksaria, Anil Prabhakar
We present a method for estimating the number of shots required to achieve a desired variance in the results of a quantum circuit. First, we establish a baseline for single-qubit c…