Research

Quantum computers can provide significant computational speedup over classical computers for solving certain important problems such as integer factoring and simulation of large quantum systems. However, noise in realistic quantum devices limit the utility of the currently available quantum devices. Thus, to realize the full potential of quantum computing, we need to implement fault-tolerant quantum computing by using quantum error correction.

During my PhD, I have mostly focused on bosonic quantum error correction where we take advantage of the infinite dimensionality of a bosonic Hilbert space. In particular, I have developed and analyzed various bosonic codes against bosonic Gaussian channels which are practically relevant.

Since quantum error correction theory is closely related to quantum commumnication theory I have also worked on various communication-theoretic aspects of bosonic Gaussian channels.

Recently, I became interested in achieving quantum computational advantage using noisy intermediate-scale quantum (NISQ) devices. Specifically, I aim to understand the adverse effects of noise on the computational power of a noisy quantum device.