aqora

Dynamical topological phase realized in a trapped-ion quantum simulator

Philipp T. Dumitrescu, Justin Bohnet, John Gaebler +6 more

arXiv:2107.09676NatureJul 20, 202278 citations

Engineering Vibrationally Assisted Energy Transfer in a Trapped-Ion Quantum Simulator

Dylan J Gorman, Boerge Hemmerling, E. Megidish +4 more

Many important chemical and biochemical processes in the condensed phase are notoriously difficult to simulate numerically.Often, this difficulty arises from the complexity of simulating dynamics resulting from coupling to structured, mesoscopic baths, for which no separation of time scales exists and statistical treatments fail.A prime example of such a process is vibrationally assisted charge or energy transfer.A quantum simulator, capable of implementing a realistic model of the system of interest, could provide insight into these processes in regimes where numerical treatments fail.We take a first step towards modeling such transfer processes using an ion-trap quantum simulator.By implementing a minimal model, we observe vibrationally assisted energy transport between the electronic states of a donor and an acceptor ion augmented by coupling the donor ion to its vibration.We tune our simulator into several parameter regimes and, in particular, investigate the transfer dynamics in the nonperturbative regime often found in biochemical situations.Many important chemical and biochemical processes in the condensed phase are notoriously difficult to simulate numerically.Often, this difficulty arises from the complexity of simulating dynamics resulting from coupling to structured, mesoscopic baths, for which no separation of time scales exists and statistical treatments fail.A prime example of such a process is vibrationally assisted charge or energy transfer.A quantum simulator, capable of implementing a realistic model of the system of interest, could provide insight into these processes in regimes where numerical treatments fail.We take a first step towards modeling such transfer processes using an ion-trap quantum simulator.By implementing a minimal model, we observe vibrationally assisted energy transport between the electronic states of a donor and an acceptor ion augmented by coupling the donor ion to its vibration.We tune our simulator into several parameter regimes and, in particular, investigate the transfer dynamics in the nonperturbative regime often found in biochemical situations.

arXiv:1709.04064Physical Review XMar 7, 201880 citations

Engineering Trapped-Ion Systems for Large Scale Quantum Simulation

Guido Pagano, A. Kyprianidis, Harvey Kaplan +10 more

Bulletin of the American Physical SocietyMar 7, 20190 citations

Optimizing Adiabaticity in a Trapped-Ion Quantum Simulator

Phil Richerme, Crystal Senko, S. É. Korenblit +3 more

Bulletin of the American Physical SocietyJun 6, 20130 citations

Experimental Quantum Simulation of Chemical Dynamics

Tomas Navickas, Ryan J. MacDonell, Christophe H. Valahu +10 more

Accurate simulation of dynamic processes in molecules and reactions is among the most challenging problems in quantum chemistry. Quantum computers promise efficient chemical simulation, but the existing quantum algorithms require many logical qubits and gates, placing practical applications beyond existing technology. Here, we carry out the first quantum simulations of chemical dynamics by employing a more hardware-efficient encoding scheme that uses both qubits and bosonic degrees of freedom. Our trapped-ion device accurately simulates the dynamics of nonadiabatic chemical processes, which are among the most difficult problems in computational chemistry because they involve strong coupling between electronic and nuclear motions. We demonstrate the programmability and versatility of our approach by simulating the dynamics of three different molecules, as well as open-system dynamics in the condensed phase, all with the same quantum resources. Our approach requires orders of magnitude fewer resources than equivalent qubit-only quantum simulations, demonstrating the potential of using hybrid encoding schemes to accelerate quantum simulations of complex chemical processes, which could have applications in fields ranging from energy conversion and storage to biology and drug design.Accurate simulation of dynamic processes in molecules and reactions is among the most challenging problems in quantum chemistry. Quantum computers promise efficient chemical simulation, but the existing quantum algorithms require many logical qubits and gates, placing practical applications beyond existing technology. Here, we carry out the first quantum simulations of chemical dynamics by employing a more hardware-efficient encoding scheme that uses both qubits and bosonic degrees of freedom. Our trapped-ion device accurately simulates the dynamics of nonadiabatic chemical processes, which are among the most difficult problems in computational chemistry because they involve strong coupling between electronic and nuclear motions. We demonstrate the programmability and versatility of our approach by simulating the dynamics of three different molecules, as well as open-system dynamics in the condensed phase, all with the same quantum resources. Our approach requires orders of magnitude fewer resources than equivalent qubit-only quantum simulations, demonstrating the potential of using hybrid encoding schemes to accelerate quantum simulations of complex chemical processes, which could have applications in fields ranging from energy conversion and storage to biology and drug design.

arXiv:2409.04044Journal of the American Chemical SocietyMay 14, 202525 citations

The advantages of trapped-ion quantum computation

Michael J. Biercuk

Bulletin of the American Physical SocietyMar 5, 20180 citations

Seeking a quantum advantage with trapped-ion quantum simulations of condensed-phase chemical dynamics

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