{"id":20488,"date":"2026-10-06T12:08:20","date_gmt":"2026-10-06T12:08:20","guid":{"rendered":"https:\/\/news.theck1.no\/?p=20488"},"modified":"2026-10-06T12:08:20","modified_gmt":"2026-10-06T12:08:20","slug":"how-to-balance-quantum-batteries-high-power-with-stable-energy-delivery-2","status":"publish","type":"post","link":"https:\/\/news.theck1.no\/?p=20488","title":{"rendered":"How to balance quantum batteries’ high power with stable energy delivery"},"content":{"rendered":"

AI-rewritten:<\/strong> This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.<\/p>\n

Phys.org • September 28, 2026<\/strong><\/div>\n\n

Quantum batteries are emerging technologies that use quantum systems to store and transfer energy, distinct from conventional chemical batteries used today. While previous research focused primarily on how quickly these batteries can be charged, new studies have established fundamental limits on the fluctuations in both the energy delivered and the rate of delivery. Published in PRX Quantum, the work titled "Fundamental Limitations on the Reliabilities of Power and Work in Quantum Batteries" explains that quantum mechanics prevents fluctuations in energy and power from being made arbitrarily small at the same time. This means reliable energy delivery and stable power cannot be achieved simultaneously.<\/p>\n

<\/p>\n

The study found that this trade-off arises because work and power are represented by noncommuting operators in closed quantum batteries, similar to how position and momentum relate in quantum mechanics. Researchers examined different charging methods, including parallel, collective, and hybrid approaches. Results showed that stronger collective charging increases power but also increases power fluctuations, reducing reliability. Consequently, maximum power alone is not sufficient for assessing performance. Instead, a charging scheme based on intermediate-range interactions can provide a useful compromise between high power and stable operation.<\/p>\n

Experts note that these reliability limits connect quantum fluctuations with many-body quantum physics in a direct way, offering practically advantageous charging strategies. The team also found this power\u2013reliability trade-off exists in quantum batteries with transverse Ising-like many-body interactions, indicating the effect is not restricted to the simplest theoretical model. Future research aims to investigate these limits in more realistic settings involving noise, dissipation, and experimentally relevant platforms.<\/p>\n

\n

Source:<\/strong> Phys.org • September 28, 2026<\/p>\n

Read the original article at Phys.org →<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story. Phys.org • September 28, 2026 Quantum batteries are emerging technologies that use quantum systems to store and transfer energy,<\/p>\n

READ MORE<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-20488","post","type-post","status-publish","format-standard","hentry","category-quantum-technology"],"_links":{"self":[{"href":"https:\/\/news.theck1.no\/index.php?rest_route=\/wp\/v2\/posts\/20488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/news.theck1.no\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.theck1.no\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.theck1.no\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news.theck1.no\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20488"}],"version-history":[{"count":0,"href":"https:\/\/news.theck1.no\/index.php?rest_route=\/wp\/v2\/posts\/20488\/revisions"}],"wp:attachment":[{"href":"https:\/\/news.theck1.no\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.theck1.no\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.theck1.no\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}