Imaginary Time Propagation on a Quantum Chip

التفاصيل البيبلوغرافية
العنوان: Imaginary Time Propagation on a Quantum Chip
المؤلفون: F. Turro, A. Roggero, V. Amitrano, P. Luchi, K. A. Wendt, J. L. Dubois, S. Quaglioni, F. Pederiva
بيانات النشر: arXiv, 2021.
سنة النشر: 2021
مصطلحات موضوعية: Nuclear Theory (nucl-th), Quantum Physics, Nuclear Theory, ComputerSystemsOrganization_MISCELLANEOUS, FOS: Physical sciences, Quantum Physics (quant-ph)
الوصف: Evolution in imaginary time is a prominent technique for finding the ground state of quantum many-body systems, and the heart of a number of numerical methods that have been used with great success in quantum chemistry, condensed matter and nuclear physics. We propose an algorithm to implement imaginary time propagation on a quantum computer. Our algorithm is devised in the context of an efficient encoding into an optimized gate, drawing on the underlying characteristics of the quantum device, of a unitary operation in an extended Hilbert space. However, we proved that for simple problems it can be successfully applied to standard digital quantum machines. This work paves the way for porting quantum many-body methods based on imaginary-time propagation to near-term quantum devices, enabling the future quantum simulation of the ground states of a broad class of microscopic systems.
Comment: 12 pages, 8 figures, 3 tables
DOI: 10.48550/arxiv.2102.12260
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::988ee1e9eb803a18e89074f7a897e102
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....988ee1e9eb803a18e89074f7a897e102
قاعدة البيانات: OpenAIRE
الوصف
DOI:10.48550/arxiv.2102.12260