activity
20242026
most citedCrossing the 12,000-atom barrier with heterogeneous quantum-classical supercomputing: quantum chemistry of protein-ligand complexes

1 citations · 2 across the 15 of their papers we have counts for

collaborators

17 papers

cs.LG2026

Predicting Collision Cross Sections with GRACE: Geometric Residual Adduct Conditioning via Early-fusion

Parthasarathy Suryanarayanan, Susanta Das, Shreyans Sethi +2

Collision cross section (CCS), derived from ion mobility mass spectrometry, is a common descriptor for molecular annotation. Prediction is challenging for machine learning models b…

quant-ph2026

Quantum-Centric Geometry Optimization with Wave-Function-Based Embedding

Danil Kaliakin, Akhil Shajan, Fangchun Liang +2

The EWF-(FCI,SQD) method, a wave-function-based embedding approach combining full configuration interaction (FCI) and sample-based quantum diagonalization (SQD), is a promising new…

physics.chem-ph2026

Quantum Computing Enabled ab initio Molecular Dynamics Simulations

Susanta Das, Subhamoy Bhowmik, Zhen Li +4

We demonstrate a quantum-classical workflow for ab initio molecular dynamics (AIMD) in which quantum measurements from a chemistry-inspired LUCJ ansatz are post-processed using Sam…

quant-ph2026

Quantum Computations on Fusion Blanket Molten Salts

Susanta Das, Thiago J. Pinheiro Dos Santos, Subhamoy Bhowmik +14

Molten salts such as FLiBe (2LiF--BeF) are leading blanket materials for breeding and recovering tritium in fusion reactors. Predicting tritium speciation requires accurate ele…

quant-ph2026

I-QMapper: Error-Aware Layout Optimization and Device Diagnostics for NISQ Hardware

Milana Bazayeva, Kenneth Merz

Achieving high-fidelity execution on noisy intermediate-scale quantum (NISQ) hardware requires careful selection of physical qubit layouts, as gate errors, readout errors, and cohe…

quant-ph2026

A Quantum Multi-Programming Framework to Maximize Quantum Resources for the LUCJ Ansatz

Milana Bazayeva, Abigail McClain Gomez, Kenneth M. Merz

In the context of quantum computing, efficient resource management is crucial for optimizing throughput on cloud-based platforms and maximizing hardware utilization. In the present…

quant-ph2026★ 1 cited

Crossing the 12,000-atom barrier with heterogeneous quantum-classical supercomputing: quantum chemistry of protein-ligand complexes

Kenneth M. Merz, Akhil Shajan, Danil Kaliakin +21

We develop a workflow decomposing a molecule into fragments via quantum embedding and simulating them with a heterogeneous quantum-classical (HQC) method. We sample fragment electr…

quant-ph2026

Protein-Ligand Free Energy Perturbation on Quantum Hardware

Zhen Li, Milana Bazayeva, Thaddeus Pellegrini +6

The use of free energy perturbation (FEP) methods to study protein-ligand complexes is one of the most important tools in structure-based drug design. Because FEP methods typically…

quant-ph2026

Molecular Quantum Computations on a Protein

Akhil Shajan, Danil Kaliakin, Fangchun Liang +7

This work presents the implementation of a fragment-based, quantum-centric supercomputing workflow for computing molecular electronic structure using quantum hardware. The workflow…

quant-ph2025

Domain-Aware Quantum Circuit for QML

Gurinder Singh, Thaddeus Pellegrini, Kenneth M. Merz

Designing parameterized quantum circuits (PQCs) that are expressive, trainable, and robust to hardware noise is a central challenge for quantum machine learning (QML) on noisy inte…

quant-ph2025

Improved parameter initialization for the (local) unitary cluster Jastrow ansatz

Wan-Hsuan Lin, Fangchun Liang, Mario Motta +3

The unitary cluster Jastrow (UCJ) ansatz and its variant known as local UCJ (LUCJ) are promising choices for variational quantum algorithms for chemistry due to their combination o…

quant-ph2025

Quantum Algorithm for Protein Structure Prediction Using the Face-Centered Cubic Lattice

Rui-Hao Li, Hakan Doga, Bryan Raubenolt +16

In this work, we present the first implementation of the face-centered cubic (FCC) lattice model for protein structure prediction with a quantum algorithm. Our motivation to encode…

quant-ph2025★ 1 cited

Improving GANs by leveraging the quantum noise from real hardware

Hongni Jin, Kenneth M. Merz

We propose a novel approach to generative adversarial networks (GANs) in which the standard i.i.d. Gaussian latent prior is replaced or hybridized with a quantum-correlated prior d…

physics.chem-ph2025

Quantum-Centric Alchemical Free Energy Calculations

Milana Bazayeva, Zhen Li, Danil Kaliakin +4

In the present work, we present a hybrid quantum-classical workflow aimed at improving the accuracy of alchemical free energy (AFE) predictions by incorporating configuration inter…

quant-ph2025

QFGN: A Quantum Approach to High-Fidelity Implicit Neural Representations

Hongni Jin, Gurinder Singh, Kenneth M. Merz

Implicit neural representations have shown potential in various applications. However, accurately reconstructing the image or providing clear details via image super-resolution rem…

quant-ph2025

Benchmarking MedMNIST dataset on real quantum hardware

Gurinder Singh, Hongni Jin, Kenneth M. Merz

Quantum machine learning (QML) has emerged as a promising domain to leverage the computational capabilities of quantum systems to solve complex classification tasks. In this work,…

cs.LG2024

Integrating Machine Learning and Quantum Circuits for Proton Affinity Predictions

Hongni Jin, Kenneth M. Merz

A key step in interpreting gas-phase ion mobility coupled with mass spectrometry (IM-MS) data for unknown structure prediction involves identifying the most favorable protonated st…