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Quantum effects such as the environment assisted quantum transport (ENAQT) displayed in photosynthetic Fenna-Mathews-Olson (FMO) complex has been simulated on analog quantum simulators. Digital quantum simulations offer greater universality…

Quantum Physics · Physics 2020-12-11 Pragati Gupta , C. M. Chandrashekar

Large scale simulations of light-matter interaction in natural photosynthetic antenna complexes containing more than one hundred thousands chlorophyll molecules, comparable with natural size, have been performed. Photosynthetic antenna…

We focus on potential mechanisms for `energy-loss-free' transport along the cell microtubules, which could be considered as realizations of Fr\"ohlich's ideas on the role of solitons for superconductivity and/or biological matter. In…

Quantum Physics · Physics 2007-05-23 N. E. Mavromatos , D. V. Nanopoulos

We investigate on the procedure of extracting a "spectral density" from mixed QM/MM calculations and employing it in open quantum systems models. In particular, we study the connection between the energy gap correlation function extracted…

Quantum Physics · Physics 2012-12-12 Stéphanie Valleau , Alex Eisfeld , Alán Aspuru-Guzik

Efficient simulation of quantum mechanical problems can be performed in a quantum computer where the interactions of qubits lead to the realization of various problems possessing quantum nature. Spin-Boson Model (SBM) is one of the striking…

We study the role of the dimer structure of light-harvesting complex II (LH2) in excitation transfer from the LH2 (without a reaction center (RC)) to the LH1 (surrounding the RC), or from the LH2 to another LH2. The excited and un-excited…

Biological Physics · Physics 2010-06-28 S. Yang , D. Z. Xu , Z. Song , C. P. Sun

This paper reviews progress on the Fractional Quantum Hall Effect (FQHE) based on what we term hamiltonian theories, i.e., theories that proceed from the microscopic electronic hamiltonian to the final solution via a sequence of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ganpathy Murthy , R. Shankar

Understanding planetary interiors is directly linked to our ability of simulating exotic quantum mechanical systems such as hydrogen (H) and hydrogen-helium (H-He) mixtures at high pressures and temperatures. Equations of State (EOSs)…

Strongly Correlated Electrons · Physics 2018-01-17 Guglielmo Mazzola , Ravit Helled , Sandro Sorella

Using methods of condensed matter and statistical physics, we examine the transport of excitons through the Fenna-Matthews-Olson (FMO) complex from a receiving antenna to a reaction center. Writing the equations of motion for the exciton…

Biological Physics · Physics 2016-02-23 Lev Mourokh , Franco Nori

Solving linear systems is of great importance in numerous fields. Proposed quantum algorithms for preparing solutions for linear systems include the HHL algorithm with subsequent refinements and variational methods. Circulant linear systems…

Quantum Physics · Physics 2026-01-15 Po-Wei Huang , Xiufan Li , Kelvin Koor , Patrick Rebentrost

A generic and intuitive model for coherent energy transport in multiple minima systems coupled to a quantum mechanical bath is shown. Using a simple spin-boson system, we illustrate how a generic donor-acceptor system can be brought into…

Biological Physics · Physics 2014-06-24 Tristan Farrow , Vlatko Vedral

In this study, we develop an extended implicit moment method, namely, a coupled high-order low-order (HOLO) method and apply it to the electromagnetic Vlasov-Darwin model. The high-order (HO) system evolves particles in a manner that…

Plasma Physics · Physics 2025-08-13 Derek A. Kuldinow , William T. Taitano , Kentaro Hara

The photon flux resulting from high-energy electron beam interactions with high field systems, such as in the upcoming FACET-II experiments at SLAC National Accelerator Laboratory, may give deep insight into the electron beam's underlying…

Accelerator Physics · Physics 2023-09-26 M. Yadav , M. Oruganti , S. Zhang , B. Naranjo , G. Andonian , Y. Zhuang , Ö. Apsimon , C. P. Welsch , J. B. Rosenzweig

An unconventional bosonization approach that employs a modified Fermi-Bose correspondence is used to obtain the tunneling density of states (TDOS) of fractional quantum Hall (FQHE) edges in the vicinity of a point contact. The chiral…

Mesoscale and Nanoscale Physics · Physics 2023-11-28 Nikhil Danny Babu , Girish S. Setlur

A BEC interacting with an optical field via a feedback mirror can be a realisation of the quantum Hamiltonian Mean Field (HMF) model, a paradigmatic model of long-range interactions in quantum systems. We demonstrate that the…

Quantum Physics · Physics 2023-07-12 Gordon Robb , Josh Walker , Gian-Luca Oppo , Thorsten Ackemann

Many-body open quantum systems (OQS) have a profound impact on various subdisciplines of physics, chemistry, and biology. Thus, the development of a computer program capable of accurately, efficiently, and versatilely simulating many-body…

Strongly Correlated Electrons · Physics 2024-11-18 Daochi Zhang , Lyuzhou Ye , Jiaan Cao , Yao Wang , Rui-Xue Xu , Xiao Zheng , YiJing Yan

Metal Organic Frameworks (MOFs) are promising materials to help mitigate the effects of global warming by selectively absorbing $\text{CO}_{2}$ for direct capture. Accurate quantum chemistry simulations are a useful tool to help select and…

We investigate the role of long-lasting quantum coherence in the efficiency of energy transport at room temperature in Fenna-Matthews-Olson photosynthetic complexes. The excitation energy transfer due to the coupling of the light harvesting…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 G. L. Celardo , F. Borgonovi , M. Merkli , V. I. Tsifrinovich , G. P. Berman

The quantum speed limit (QSL) provides a fundamental upper bound on the speed of quantum evolution, but its evaluation in generic open quantum systems still presents a formidable computational challenge. Herein, we introduce a hybrid…

Quantum Physics · Physics 2019-04-30 Junjie Liu , Dvira Segal , Gabriel Hanna

Phototrophic organisms such as plants, photosynthetic bacteria and algae use microscopic complexes of pigment molecules to absorb sunlight. Within the light-harvesting complexes, which frequently have several functional and structural…