Annalen der Physik最新文献

{"title":"Nonreciprocal Photon Blockade in Coupled Optomechanical Cavities","authors":"Dan Yan,&nbsp;Jin-Na Fan,&nbsp;Cheng-Hua Bai,&nbsp;Shao-Xiong Wu,&nbsp;Qiannan Wu,&nbsp;Mengwei Li","doi":"10.1002/andp.70296","DOIUrl":"https://doi.org/10.1002/andp.70296","url":null,"abstract":"<div>\u0000 \u0000 <p>We propose a scheme to achieve nonreciprocal photon blockade in a coupled double-cavity optomechanical system. Leveraging intercavity photon tunneling, asymmetric dissipation, and optical-parametric-amplification-induced nonlinearity, we realize robust single-photon blockade in both cavities under weak optomechanical coupling via the unconventional photon blockade mechanism. This effect originates from destructive quantum interference among multiple two-photon excitation pathways. Under optimal pumping conditions, pronounced nonreciprocity is achieved over a broad parameter range. Notably, one cavity mode exhibits robust nonreciprocal behavior, while the other offers superior tunability, stemming from distinct dominant quantum interference mechanisms. This work establishes a promising platform for realizing nonreciprocal single-photon sources within cavity optomechanical systems.</p>\u0000 </div>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Floquet Control of Erratic-Gauge Collective Pinning in a Non-Hermitian Aubry–André–Harper Chain","authors":"Wei Ding,&nbsp;Yazhuang Miao,&nbsp;Xiaolong Zhao,&nbsp;Hongyang Ma,&nbsp;Litong Wang","doi":"10.1002/andp.70289","DOIUrl":"https://doi.org/10.1002/andp.70289","url":null,"abstract":"<div>\u0000 \u0000 <p>We investigate Floquet control of a non-Hermitian Aubry–André–Harper chain with a spatially fluctuating imaginary gauge field of zero mean. Under open boundary conditions, an exact nonunitary transformation maps the driven problem to its Hermitian counterpart, separating the Hermitian-frame evolution from the gauge-induced spatial reweighting of right-state profiles. This structure distinguishes erratic-gauge collective pinning from AAH localization with eigenstate-dependent centers. High-frequency driving tunes their crossover through the renormalized hopping. The real-time dynamics shows a nonmonotonic response: intermediate driving enables spreading into the bulk followed by gauge-induced concentration in an interior region, whereas stronger driving suppresses the underlying spreading. Comparison with the similarity-matched Hermitian evolution directly separates these two contributions. Our results establish Floquet driving as a route to control collective pinning induced by spatially fluctuating imaginary gauge fields, and suggest a general strategy for manipulating erratic non-Hermitian states.</p>\u0000 </div>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum Corrections to the Josephson Dynamics: A Population-Imbalance Approach","authors":"Oliver Hideg,&nbsp;Sofia Salvatore,&nbsp;Luca Salasnich","doi":"10.1002/andp.70292","DOIUrl":"https://doi.org/10.1002/andp.70292","url":null,"abstract":"<div>\u0000 \u0000 <p>We investigate quantum corrections to the Josephson dynamics of two weakly coupled Bose–Einstein condensates using the population imbalance as the sole dynamical variable. Starting from the two-variable action, we derive the imbalance-only Lagrangian with a position-dependent mass and quantize it via symmetric operator ordering. The leading quantum corrections to the classical potential and mass are computed via the one-loop quantum effective action, using a covariant background-field method that fully accounts for the coordinate dependence of the mass. This yields explicit expressions for the effective potential and the effective mass, from which we derive the quantum-corrected Josephson frequency. Numerical comparison with exact diagonalization of the two-site Bose–Hubbard model shows that the imbalance-only formulation performs better than the complementary phase-only approach in the regime of weak interactions.</p>\u0000 </div>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coupled Dynamics Between Networks and Fields in Physical Space: A Theoretical Perspective","authors":"Alex Arenas,&nbsp;Oriol Artime,&nbsp;Albert Díaz-Guilera,&nbsp;Sergio Gómez,&nbsp;Clara Granell","doi":"10.1002/andp.70288","DOIUrl":"https://doi.org/10.1002/andp.70288","url":null,"abstract":"<p>Many complex systems cannot be understood from network structure alone, nor from continuum descriptions in isolation, because their dynamics emerge from the reciprocal coupling between discrete interaction architectures and spatially extended physical fields. This perspective article surveys mathematical and computational frameworks for such network–field systems, focusing on models in which a graph is either itself the spatial substrate of a field or is embedded in a surrounding medium that mediates transport, signaling, forcing, or spatially distributed hazards. We first introduce a unified formalism for bidirectionally coupled network–field dynamics, emphasizing observation and injection operators that link node variables to continuum processes while preserving balance laws. We then examine two major modeling classes: fields evolving directly on metric graphs, where partial differential equations are posed on network geometries with vertex matching conditions; and hybrid discrete–continuous systems, where node dynamics are coupled to fields in the ambient domain, with particular attention to port-Hamiltonian formulations that provide energy-consistent interconnection principles. Within this common framework, we discuss representative modeling applications in neurobiology, including diffusion-mediated cellular communication and extracellular neural signaling, and in infrastructure systems, where network functionality depends on spatially distributed flows, loads, and hazards. Across these examples, a common picture emerges: the field is not merely an external environment, but an active dynamical layer that reshapes effective interactions, timescales, and collective behavior. By synthesizing concepts that are often developed separately across disciplines, this perspective article aims to clarify the mathematical structure, physical interpretation, and numerical challenges of coupled network–field models, and to highlight their role as a unifying language for spatially embedded complex systems.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.70288","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diffraction-Limited Focusing Using a Polarization-Insensitive Double-Layer Huygens Metalens","authors":"Nurul Fahmi Arief Hakim,&nbsp;Gregorius Pascal Foster Sianturi,&nbsp;Fajri Darwis,&nbsp;Suisbiyanto Prasetya,&nbsp;Ashif Aminulloh Fathnan","doi":"10.1002/andp.70280","DOIUrl":"https://doi.org/10.1002/andp.70280","url":null,"abstract":"<div>\u0000 \u0000 <p>Double-layer Huygens metasurfaces offer an attractive, low-profile alternative to complex multilayer designs, but their inherently coupled electric and magnetic responses typically introduce phase errors that severely degrade wavefront fidelity. Consequently, these ultrathin architectures often struggle to achieve the diffraction-limited focusing required for high-resolution millimeter-wave systems. To overcome this fundamental efficiency-phase trade-off, this paper presents a double-layer Huygens metalens engineered for diffraction-limited operation across both orthogonal linear polarizations. By employing a symmetric and anti-symmetric meta-atom geometry and optimizing interlayer coupling, the proposed design suppresses parasitic phase errors, ensuring <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mi>π</mi>\u0000 </mrow>\u0000 <annotation>$2pi$</annotation>\u0000 </semantics></math> phase coverage and preserving wavefront fidelity. Experimental validation of the fabricated prototype in the K-band confirms both its near-field phase fidelity and far-field system performance. Near-field characterizations demonstrate a peak focusing efficiency of 94% at 23.3 GHz and a maximum Strehl ratio of 0.88, quantitatively confirming diffraction-limited spatial resolution. Furthermore, far-field measurements employing a standard horn feed validate practical applicability, achieving a total peak gain of 24.65 dBi and an aperture efficiency of 37.7%. Together, these near- and far-field characterizations validate the system's practical utility, establishing the proposed metalens as a robust, low-profile architecture for advanced millimeter-wave beamforming and sensing.</p>\u0000 </div>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Operating a Contextual Stern–Gerlach Apparatus","authors":"Th. K. Mavrogordatos","doi":"10.1002/andp.70286","DOIUrl":"https://doi.org/10.1002/andp.70286","url":null,"abstract":"<p>We propose a contextual cavity/circuit QED analog and extension of the Stern–Gerlach experiment, where the pseudo-spin of a two-state “atomic” transition plays the role of the “spin,” while the resonant field driving the transition stands for the “magnetic field.” A phase-sensitive continuous detection of the cavity field coupled to the induced “atomic” dipole affects the stability of the two distinct outcomes. The dressed states comprising the latter give their place to a self-consistent spontaneous dressed-state polarization as the driving strength is lowered. The associated evolution proves anew highly contextual, underpinned by a persistent production of coherent-state superpositions for a particular setting of the monitoring device. Finally, when bistability is absent, we employ the photoelectron “atomic” emission statistics as a diagnostic tool of the cavity field fluctuations.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.70286","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coherence and Local Quantum Fisher Information in Tilted Dirac Systems With Reservoir Memory","authors":"Ayyoub El Mouatasim,&nbsp;Abdelghani El Houri,&nbsp;Brahim El Houari,&nbsp;Rachid Houça","doi":"10.1002/andp.70285","DOIUrl":"https://doi.org/10.1002/andp.70285","url":null,"abstract":"<div>\u0000 \u0000 <p>We study quantum resources in tilted-Dirac materials using a thermal state and reservoir-driven dynamics in dissipative weak-coupling and memory-bearing strong-coupling regimes. In contrast to the usual treatments based on the Bellomo formalism and relying on Bell or Werner states, the present approach starts from a physically motivated thermal state of two qubits whose initial properties are determined by the system temperature and the velocity parameters of the underlying Dirac material. The subsequent dynamics is modeled using the Bellomo formalism for two independent qubits, each locally coupled to an independent reservoir. To characterize the evolution, we analyze coherence quantified by the <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>l</mi>\u0000 <mn>1</mn>\u0000 </msub>\u0000 <annotation>$l_1$</annotation>\u0000 </semantics></math>-norm and local quantum Fisher information. Weak, effectively Markovian coupling yields monotonic coherence decay, while local quantum Fisher information depends more strongly on parameters, especially at low reservoir temperatures; varying velocity parameters together obscures their individual effects. With strong, memory-bearing coupling, coherence remains suppressed at long times, whereas local quantum Fisher information decreases then recovers to a large asymptotic value. The two measures thus respond differently to thermal, material, and reservoir effects, without implying general practical metrological superiority of local quantum Fisher information.</p>\u0000 </div>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum Correlations in Gravitationally Coupled Masses Under Oscillatory Magnetic Driving","authors":"Mohamed El Harrar,&nbsp;Abdellah Slaoui,&nbsp;Redouane Assad,&nbsp;Mohammed El Falaki,&nbsp;Rachid Ahl Laamara","doi":"10.1002/andp.70271","DOIUrl":"https://doi.org/10.1002/andp.70271","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;We investigate time-dependent quantum correlations in a system of three gravitationally coupled quantum masses subjected to an oscillatory magnetic field &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;B&lt;/mi&gt;\u0000 &lt;mo&gt;(&lt;/mo&gt;\u0000 &lt;mi&gt;t&lt;/mi&gt;\u0000 &lt;mo&gt;)&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$B(t)$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, using the thermal density matrix formalism, we analyze the dynamics of quantum coherence &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;C&lt;/mi&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;l&lt;/mi&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;/msub&gt;\u0000 &lt;annotation&gt;$C_{l_1}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, quantum negativity &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;N&lt;/mi&gt;\u0000 &lt;annotation&gt;$mathcal {N}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, local quantum uncertainty (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;LQU&lt;/mi&gt;\u0000 &lt;annotation&gt;$mathcal {LQU}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), and local quantum Fisher information (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;LQFI&lt;/mi&gt;\u0000 &lt;annotation&gt;$mathcal {LQFI}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;) as functions of time and key physical parameters, including the gravitational coupling strength &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;Δ&lt;/mi&gt;\u0000 &lt;annotation&gt;$Delta$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, magnetic field amplitude &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;B&lt;/mi&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;annotation&gt;$B_0$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, magnetic–mass coupling constant &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;γ&lt;/mi&gt;\u0000 &lt;annotation&gt;$gamma$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, intrinsic energy &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;ω&lt;/mi&gt;\u0000 &lt;annotation&gt;$omega$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, and temperature &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;T&lt;/mi&gt;\u0000 &lt;annotation&gt;$T$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;. Our results reveal rich dynamical behavior: quantum coherence exhibits pronounced temporal minima for moderate &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;Δ&lt;/mi&gt;\u0000 &lt;annotation&gt;$Delta$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, while strong coupling suppresses time dependence, while entanglement remains robust against thermal effects and shows a non-monotonic dependence on magnetic field parameters, moreover, &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mi&gt;LQU&lt;/mi&gt;\u0000 &lt;annotation&gt;$mat","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148942154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Spin-s U(1)-Eigenstate Preparation”","authors":"","doi":"10.1002/andp.70281","DOIUrl":"https://doi.org/10.1002/andp.70281","url":null,"abstract":"<p>N. Zare Harofteh and R. I. Nepomechie, “ Spin-s <i>U</i>(1)-Eigenstate Preparation,” Annalen der Physik 538, no. 7 (2026): e70239, https://doi.org/10.1002/andp.70239</p><p>All calculations were performed using the correct expression, and therefore the results and conclusions of the paper are unchanged.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.70281","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum Limits to Linewidth Narrowing in Single- and Few-Atom Cavity Electromagnetically Induced Transparency","authors":"Lucas R. S. Santos,&nbsp;Murilo H. Oliveira,&nbsp;Luiz O. R. Solak,&nbsp;Daniel Z. Rossatto,&nbsp;Celso J. Villas-Boas","doi":"10.1002/andp.70283","DOIUrl":"https://doi.org/10.1002/andp.70283","url":null,"abstract":"<p>Electromagnetically induced transparency (EIT) in cavities can narrow the transmission resonance below the empty-cavity linewidth. We investigate the limits of this narrowing from a single emitter to the few-atom regime. Using a Lindblad master equation for <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>N</mi>\u0000 <mtext>at</mtext>\u0000 </msub>\u0000 <annotation>$N_{text{at}}$</annotation>\u0000 </semantics></math> identical three-level atoms coupled to a cavity mode, driven by coherent probe and control fields, we compute the full width at half maximum (FWHM) of the transparency feature. In the strictly low-excitation limit, we derive an analytical cubic polynomial that captures the narrowing and recovers the known linear-response scaling. For finite probe powers, the achievable linewidth faces a quantum bound on the minimum achievable linewidth. Contrasting our model with a semiclassical approximation, we show this limitation arises from the unavoidable excitation of higher-order multiphoton states. Their intrinsically larger decay rates destroy the ideal single-excitation EIT dark state. Increasing <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>N</mi>\u0000 <mtext>at</mtext>\u0000 </msub>\u0000 <annotation>$N_{text{at}}$</annotation>\u0000 </semantics></math> enhances collective cooperativity, creating a multiphoton blockade that suppresses these detrimental excitations and yields a stepwise reduction of the minimum FWHM. Our results provide analytical boundaries for cavity-EIT linewidth control, guiding the optimization of narrowband filters and highly coherent light–matter interfaces.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"538 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.70283","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}