74 citations · 291 across the 20 of their papers we have counts for
21 papers
Scalable Quantum Monte Carlo Method for Polariton Chemistry via Mixed Block Sparsity and Tensor Hypercontraction Method
Yu Zhang
We present a reduced-scaling auxiliary-field quantum Monte Carlo (AFQMC) framework designed for large molecular systems and ensembles, with or without coupling to optical cavities.…
Hybrid programming-model strategies for GPU offloading of electronic structure calculation kernels
Jean-Luc Fattebert, Christian F. A. Negre, Joshua Finkelstein +6
To address the challenge of performance portability, and facilitate the implementation of electronic structure solvers, we developed the Basic Matrix Library (BML) and Parallel, Ra…
A Diffusion Quantum Monte Carlo Approach to the Polaritonic Ground State
Braden M. Weight, Sergei Tretiak, Yu Zhang
Making and using polaritonic states (i.e., hybrid electron-photon states) for chemical applications have recently become one of the most prominent and active fields that connects t…
Plasmon mediated coherent population oscillations in molecular aggregates
Daniel Timmer, Moritz Gittinger, Thomas Quenzel +9
The strong coherent coupling of quantum emitters to vacuum fluctuations of the light field offers opportunities for manipulating the optical and transport properties of nanomateria…
Machine Learning Framework for Modeling Exciton-Polaritons in Molecular Materials
Xinyang Li, Nicholas Lubbers, Sergei Tretiak +2
A light-matter hybrid quasiparticle, called a polariton, is formed when molecules are strongly coupled to an optical cavity. Recent experiments have shown that polariton chemistry…
Extended Lagrangian Born-Oppenheimer Molecular Dynamics with DFT+U
Yu Zhang, Marc J. Cawkwell, Christian F. A. Negre +2
Extended Lagrangian Born-Oppenheimer molecular dynamics (XL-BOMD) [Phys. Rev. Lett. vol. 100, 123004 (2008)] is combined with Kohn-Sham density functional theory (DFT) using a DFT+…
Spin-Polarized Extended Lagrangian Born-Oppenheimer Molecular Dynamics
Yu Zhang, Marc J. Cawkwell, Christian F. A. Negre +2
We present a generalization of Extended Lagrangian Born-Oppenheimer molecular dynamics [Phys. Rev. Lett. vol. 100, 123004 (2008); Eur. Phys. J. B vol. 94, 164 (2021)] that also inc…
Shadow molecular dynamics and atomic cluster expansions for flexible charge models
James Goff, Yu Zhang, Christian F. A. Negre +2
A shadow molecular dynamics scheme for flexible charge models is presented, where the shadow Born-Oppenheimer potential is derived from a coarse-grained approximation of range-sepa…
Theory and modeling of light-matter interactions in chemistry: current and future
Braden M. Weight, Xinyang Li, Yu Zhang
Light-matter interaction not only plays an instrumental role in characterizing materials' properties via various spectroscopic techniques but also provides a general strategy to ma…
Quantum simulation of molecular response properties
Ashutosh Kumar, Ayush Asthana, Vibin Abraham +6
Accurate modeling of the response of molecular systems to an external electromagnetic field is challenging on classical computers, especially in the regime of strong electronic cor…
Molecular Dynamics Study of Plasmon-Mediated Chemical Transformations
Xiaoyan Wu, Tammo van der Heide, Thomas Frauenheim +3
Heterogeneous catalysis of adsorbates on metallic surfaces mediated by plasmon has potential high photoelectric conversion efficiency and controllable reaction selectivity. Theoret…
Quantum self-consistent equation-of-motion method for computing molecular excitation energies, ionization potentials, and electron affinities on a quantum computer
Ayush Asthana, Ashutosh Kumar, Vibin Abraham +8
Near-term quantum computers are expected to facilitate material and chemical research through accurate molecular simulations. Several developments have already shown that accurate…
Quantum Davidson Algorithm for Excited States
Nikolay V. Tkachenko, Lukasz Cincio, Alexander I. Boldyrev +3
Excited state properties play a pivotal role in various chemical and physical phenomena, such as charge separation and light emission. However, the primary focus of most existing q…
Accurate quantum simulation of molecular ground and excited states with a transcorrelated Hamiltonian
Ashutosh Kumar, Ayush Asthana, Conner Masteran +5
NISQ era devices suffer from a number of challenges like limited qubit connectivity, short coherence times and sizable gate error rates. Thus, quantum algorithms are desired that r…
QUBO-based density matrix electronic structure method
Christian F. A. Negre, Alejandro Lopez-Bezanilla, Yu Zhang +4
Density matrix electronic structure theory is used in many quantum chemistry methods to "alleviate" the computational cost that arises from directly using wave functions. Although…
Molecular Dynamics on Quantum Annealers
Igor Gayday, Dmitri Babikov, Alexander Teplukhin +5
In this work we demonstrate a practical prospect of using quantum annealers for simulation of molecular dynamics. A methodology developed for this goal, dubbed Quantum Differential…
Computing molecular excited states on a D-Wave quantum annealer
Alexander Teplukhin, Brian K. Kendrick, Susan M. Mniszewski +6
The possibility of using quantum computers for electronic structure calculations has opened up a promising avenue for computational chemistry. Towards this direction, numerous algo…
Variational Quantum Eigensolver with Reduced Circuit Complexity
Yu Zhang, Lukasz Cincio, Christian F. A. Negre +6
The variational quantum eigensolver (VQE) is one of the most promising algorithms to find eigenvalues and eigenvectors of a given Hamiltonian on noisy intermediate-scale quantum (N…
Downfolding the Molecular Hamiltonian Matrix using Quantum Community Detection
Susan M. Mniszewski, Pavel A. Dub, Sergei Tretiak +3
Calculating the ground state energy of a molecule efficiently is of great interest in quantum chemistry. The exact numerical solution of the electronic Schrodinger equation remains…
Correlation-Informed Permutation of Qubits for Reducing Ansatz Depth in VQE
Nikolay V. Tkachenko, James Sud, Yu Zhang +6
The Variational Quantum Eigensolver (VQE) is a method of choice to solve the electronic structure problem for molecules on near-term gate-based quantum computers. However, the circ…
Non-Adiabatic Molecular Dynamics of Molecules in the Presence of Strong Light-Matter Interactions
Yu Zhang, Tammie Nelson, Sergei Tretiak
When the interaction between a molecular system and confined light modes in an optical or plasmonic cavity is strong enough to overcome the dissipative process, hybrid light-matter…