{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T13:08:45Z","timestamp":1753880925459,"version":"3.41.2"},"reference-count":44,"publisher":"World Scientific Pub Co Pte Ltd","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Open Syst. Inf. Dyn."],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:p> Nowadays, it is widely acknowledged that information can serve as a thermodynamic fuel capable of powering the extraction of useful work through measurements and feedback control. Moreover, it has been demonstrated that the work extractable from a correlated bipartite state can effectively distinguish entangled states from separable ones. In this context, we introduce an operational criterion denoted as [Formula: see text] to witness the presence of entanglement in a two-mode Gaussian state [Formula: see text], based on the amount of work that can be extracted from a thermal bath using a Szilard-like engine. In this setup, the state [Formula: see text] acts as the working medium of the engine, where modes [Formula: see text] and [Formula: see text] are generated during the first and second transitions of a nondegenerate three-level laser, and are coupled to a shared two-mode thermal bath. Our results reveal that the proposed criterion [Formula: see text] vanishes when [Formula: see text] is a product state. Furthermore, [Formula: see text] reaches its maximum value when [Formula: see text] is coupled to a vacuum bath, but it diminishes under the influence of thermal noise. Notably, the degree of entanglement detected by [Formula: see text] can be tuned via the atomic coherence of the laser. Finally, a comparison of [Formula: see text] with a reliable measure of entanglement such as logarithmic negativity, demonstrates perfect agreement in identifying the presence of entanglement in [Formula: see text]. <\/jats:p>","DOI":"10.1142\/s1230161225500039","type":"journal-article","created":{"date-parts":[[2025,5,16]],"date-time":"2025-05-16T06:27:59Z","timestamp":1747376879000},"source":"Crossref","is-referenced-by-count":0,"title":["Witnessing Entanglement via Extractable Work in a Nondegenerate Three-Level Laser"],"prefix":"10.1142","volume":"32","author":[{"given":"K.","family":"Talbi","sequence":"first","affiliation":[{"name":"Laboratory of Materials, Electrical Systems, Energy and Environment, (LMS3E), Faculty of Applied Sciences, Ait-Melloul, Ibn Zohr University, Agadir, Morocco"}]},{"given":"J.","family":"El Qars","sequence":"additional","affiliation":[{"name":"Laboratory of Materials, Electrical Systems, Energy and Environment, (LMS3E), Faculty of Applied Sciences, Ait-Melloul, Ibn Zohr University, Agadir, Morocco"},{"name":"Laboratory of Materials Physics and Systems Modelling, (LP2MS), Physics Department, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco"}]},{"given":"I.","family":"Essaoudi","sequence":"additional","affiliation":[{"name":"Laboratory of Materials Physics and Systems Modelling, (LP2MS), Physics Department, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco"}]},{"given":"A.","family":"Ainane","sequence":"additional","affiliation":[{"name":"Laboratory of Materials Physics and Systems Modelling, (LP2MS), Physics Department, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco"},{"name":"Max-Planck-Institut f\u00fcr Physik Complexer Systeme, N\u00f6thnitzer Str. 38, Dresden 01187, Germany"}]},{"given":"M.","family":"Kibbou","sequence":"additional","affiliation":[{"name":"Laboratory of Materials Physics and Systems Modelling, (LP2MS), Physics Department, Faculty of Sciences, Moulay Ismail University, 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