11 citations · 12 across the 14 of their papers we have counts for
8 papers · 1 filter
Deep thermalization with and without quantum chaos
Soumik Ghosh, Arjun Mirani, Yihui Quek +1
Can measuring part of a quantum system make the remainder more random than the whole? Deep thermalization is a phenomenon in which measurement on part of a thermalizing quantum man…
Witnessing Short- and Long-Range Nonstabilizerness via the Information Lattice
Yuliya Bilinskaya, Miguel F. Martínez, Soumi Ghosh +3
We study nonstabilizerness on the information lattice, and demonstrate that noninteger local information directly indicates nonstabilizerness. For states with a clear separation of…
Classical simulation of noisy random circuits from exponential decay of correlation
Su-un Lee, Soumik Ghosh, Changhun Oh +3
We study the classical simulability of noisy random quantum circuits under general noise models. While various classical algorithms for simulating noisy random circuits have been p…
Efficiently verifiable quantum advantage using error correction
Abhinav Deshpande, Bill Fefferman, Soumik Ghosh +3
A key issue with existing quantum advantage experiments is that their verification requires exponential classical time. In this work, we address this challenge by designing a new p…
Higher moment theory and learnability of bosonic states
Joseph T. Iosue, Yu-Xin Wang, Ishaun Datta +4
We present a sample- and time-efficient algorithm to learn any bosonic Fock state acted upon by an arbitrary Gaussian unitary. As a special case, this algorithm efficiently learns…
On the Perversity of Chern Classes for Compactified Jacobians
Soumik Ghosh
We prove some perversity bounds for the Chern classes of a compactified Jacobian fibration, namely the -th Chern class of the compactified Jacobian has perversity . Our…
Fast computational deep thermalization
Shantanav Chakraborty, Soonwon Choi, Soumik Ghosh +1
Deep thermalization refers to the emergence of Haar-like randomness from quantum systems upon partial measurements. As a generalization of quantum thermalization, it is often assoc…
The Hardness of Learning Quantum Circuits and its Cryptographic Applications
Bill Fefferman, Soumik Ghosh, Makrand Sinha +1
We show that concrete hardness assumptions about learning or cloning the output state of a random quantum circuit can be used as the foundation for secure quantum cryptography. In…