{"id":163114,"date":"2023-04-30T21:27:00","date_gmt":"2023-05-01T02:27:00","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/04\/challenges-in-the-use-of-quantum-computing-hardware-efficient-ansatze-in-electronic-structure-theory"},"modified":"2023-04-30T21:27:00","modified_gmt":"2023-05-01T02:27:00","slug":"challenges-in-the-use-of-quantum-computing-hardware-efficient-ansatze-in-electronic-structure-theory","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/04\/challenges-in-the-use-of-quantum-computing-hardware-efficient-ansatze-in-electronic-structure-theory","title":{"rendered":"Challenges in the Use of Quantum Computing Hardware-Efficient Ans\u00e4tze in Electronic Structure Theory"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/challenges-in-the-use-of-quantum-computing-hardware-efficient-ansatze-in-electronic-structure-theory3.jpg\"><\/a><\/p>\n<p>Advances in quantum computation for electronic structure, and particularly heuristic quantum algorithms, create an ongoing need to characterize the performance and limitations of these methods. Here we discuss some potential pitfalls connected with the use of hardware-efficient Ans\u00e4tze in variational quantum simulations of electronic structure. We illustrate that hardware-efficient Ans\u00e4tze may break Hamiltonian symmetries and yield nondifferentiable potential energy curves, in addition to the well-known difficulty of optimizing variational parameters. We discuss the interplay between these limitations by carrying out a comparative analysis of hardware-efficient Ans\u00e4tze versus unitary coupled cluster and full configuration interaction, and of second-and first-quantization strategies to encode Fermionic degrees of freedom to qubits.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Advances in quantum computation for electronic structure, and particularly heuristic quantum algorithms, create an ongoing need to characterize the performance and limitations of these methods. Here we discuss some potential pitfalls connected with the use of hardware-efficient Ans\u00e4tze in variational quantum simulations of electronic structure. We illustrate that hardware-efficient Ans\u00e4tze may break Hamiltonian symmetries and [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,41,1617],"tags":[],"class_list":["post-163114","post","type-post","status-publish","format-standard","hentry","category-computing","category-information-science","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/163114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/661"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=163114"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/163114\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=163114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=163114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=163114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}