From the 1 of 8 linked papers with an AI index.
8 papers
Sharp Bounds on Ground State Energy of the SYK Model
Arpon Basu, Pravesh K. Kothari, Siddhant Midha
The paper derives precise asymptotic bounds for the operator norm (ground state energy) of the SYK Hamiltonian with k-body interactions, confirming earlier predictions and showing…
Algorithmic Locality via Provable Convergence in Quantum Tensor Networks
Siddhant Midha, Yifan F. Zhang, Daniel Malz +2
Belief propagation has recently emerged as a powerful framework for evaluating tensor networks in higher dimensions, combining computational efficiency with provable analytical gua…
Belief Propagation and Tensor Network Expansions for Many-Body Quantum Systems: Rigorous Results and Fundamental Limits
Siddhant Midha, Grace M. Sommers, Joseph Tindall +1
Belief propagation (BP) provides a scalable heuristic for contracting tensor networks on loopy graphs, but its success in quantum many-body settings has largely rested on empirical…
Beyond Belief Propagation: Cluster-Corrected Tensor Network Contraction with Exponential Convergence
Siddhant Midha, Yifan F. Zhang
Tensor network contraction on arbitrary graphs is a fundamental computational challenge with applications ranging from quantum simulation to error correction. While belief propagat…
Metrology of open quantum systems from emitted radiation
Siddhant Midha, Sarang Gopalakrishnan
We explore the task of learning about the dynamics of a Markovian open quantum system by monitoring the information it radiates into its environment. For an open system with Hilber…
Steady-state dynamics and non-local correlations in thermoelectric Cooper pair splitters
Arnav Arora, Siddhant Midha, Alexander Zyuzin +2
Recent experiments on Cooper pair splitters using superconductor-quantum dot hybrids have embarked on creating entanglement in the solid-state, by engineering the sub-gap processes…