Physical review letters最新文献

{"title":"Individual Assembly of Two-Species Rydberg Molecules Using Optical Tweezers","authors":"Alexander Guttridge, Tom R. Hepworth, Daniel K. Ruttley, Aileen A. T. Durst, Matthew T. Eiles, Simon L. Cornish","doi":"10.1103/physrevlett.134.133401","DOIUrl":"https://doi.org/10.1103/physrevlett.134.133401","url":null,"abstract":"We present a new approach to investigating Rydberg molecules by demonstrating the formation and characterization of individual Rb</a:mi></a:mrow>*</a:mo></a:mrow></a:msup>Cs</a:mi></a:mrow></a:math> Rydberg molecules using optical tweezers. By employing single-atom detection of Rb and Cs, we observe molecule formation via correlated loss of both species and study the formation dynamics with single-particle resolution. We control the interatomic distances by manipulating the relative wave function of atom pairs using the tweezer intensity, optimizing the coupling to molecular states and exploring the effect of the tweezer on these states. Additionally, we demonstrate molecule association with atoms trapped in separate tweezers, paving the way for state-selective assembly of polyatomic molecules. The observed binding energies, molecular alignment, and bond lengths are in good agreement with theory. Our approach is broadly applicable to Rydberg tweezer platforms, expanding the range of available molecular systems and enabling the integration of Rydberg molecules into existing quantum science platforms. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"76 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Impact of Planar Defects on the Reversal Time of Single Magnetic Domain Nanoparticles","authors":"Hugo Bocquet, Armin Kleibert, Peter M. Derlet","doi":"10.1103/physrevlett.134.136702","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136702","url":null,"abstract":"Recent experimental investigations of individual magnetic nanoparticles reveal a diverse range of magnetic relaxation times which cannot be explained by considering their size, shape, and surface anisotropy, suggesting other factors associated with the internal microstructure of the particles are at play. In this Letter, we apply Langer’s theory of thermal activation to fcc Co nanoparticles exhibiting single domain magnetism, whose experimentally observed microstructure contain planar defects. Our analytical derivation yields an expression for the activation rate as a function of the particle size and the defect fraction, enabling a quantitative understanding of the experimental findings. These dependencies, which are exponential for both the Arrhenius exponential and its prefactor, demonstrate the critical role that structural defects can play in the magnetic stability of nanoparticles. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"25 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Parisi-Sourlas Supertranslation and Scale Invariance without Conformal Symmetry","authors":"Yu Nakayama","doi":"10.1103/physrevlett.134.131602","DOIUrl":"https://doi.org/10.1103/physrevlett.134.131602","url":null,"abstract":"Inspired by the possibility of emergent supersymmetry in critical random systems, we study a field theory model with a quartic potential of one superfield, possessing the Parisi-Sourlas supertranslation symmetry. Within perturbative ε</a:mi></a:math> expansion, we find nine nontrivial scale-invariant renormalization group fixed points, but only one of them is conformal. We, however, believe scale invariance without conformal invariance cannot occur without a sophisticated mechanism because it predicts the existence of a nonconserved but nonrenormalized vector operator called virial current, whose existence must be nongeneric. We show that the virial current in this model is related to the supercurrent by supertranslation. The supertranslation Ward-Takahashi identity circumvents the genericity argument, explaining its nonrenormalization property. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"37 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Zeeman Split Kramers Doublets in Spin-Supersolid Candidate Na2BaCo(PO4)2","authors":"T. I. Popescu, N. Gora, F. Demmel, Z. Xu, R. Zhong, T. J. Williams, R. J. Cava, G. Xu, C. Stock","doi":"10.1103/physrevlett.134.136703","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136703","url":null,"abstract":"Na</a:mi></a:mrow>2</a:mn></a:mrow></a:msub></a:mrow>BaCo</a:mi>(</a:mo>PO</a:mi></a:mrow>4</a:mn></a:mrow></a:msub></a:mrow>)</a:mo></a:mrow>2</a:mn></a:mrow></a:msub></a:mrow></a:math> is a triangular antiferromagnet that displays highly efficient adiabatic demagnetization cooling [Junsen Xiang , ] near a quantum critical point at <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>μ</e:mi><e:mn>0</e:mn></e:msub><e:msub><e:mi>H</e:mi><e:mi>c</e:mi></e:msub><e:mo>∼</e:mo><e:mn>1.6</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi mathvariant=\"normal\">T</e:mi></e:math>, separating a low-field magnetically disordered from a high-field fully polarized ferromagnetic phase. We apply high resolution backscattering neutron spectroscopy in an applied field to study the magnetic excitations near <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:msub><h:mi>μ</h:mi><h:mn>0</h:mn></h:msub><h:msub><h:mi>H</h:mi><h:mi>c</h:mi></h:msub></h:math>. At large fields we observe ferromagnetic fluctuations that gradually transition to being overdamped in energy below <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:msub><j:mi>μ</j:mi><j:mn>0</j:mn></j:msub><j:msub><j:mi>H</j:mi><j:mi>c</j:mi></j:msub></j:math> where the magnetism is spatially disordered. We parametrize the excitations in the high-field polarized phase in terms of coupled Zeeman split Kramers doublets originating from the presence of spin-orbit coupling. On reducing the field, the splitting between the Kramers doublets is reduced and if done adiabatically, provides a mechanism for reducing temperature. On lowering the applied field through the <l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><l:msub><l:mi>μ</l:mi><l:mn>0</l:mn></l:msub><l:msub><l:mi>H</l:mi><l:mi>c</l:mi></l:msub></l:math> the excitations characterize a textured phase that we suggest is inefficient for cooling. Low temperature disordered frustrated magnets built on Kramers doublets with nearby quantum critical points provide a route for efficient magnetocalorics. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"34 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Low-Energy Excitations in Bosonic Quantum Quasicrystals","authors":"A. Mendoza-Coto, M. Bonifacio, F. Piazza","doi":"10.1103/physrevlett.134.136003","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136003","url":null,"abstract":"We present the first principles construction of the low energy effective action for bosonic self-organized quantum quasicrystals. Our generalized elasticity approach retains the appropriate number of phase and corresponding conjugate density degrees of freedom required for a proper description of the gapless modes. For the dodecagonal and decagonal quasicrystal structures we obtain collective longitudinal and transverse excitations with an isotropic speed of sound. Meanwhile, for the octagonal structure, the coupling between phononic and phasonic degrees of freedom leads in turn to hybridization of the latter with the condensate sound mode, producing collective excitations with a longitudinal and transverse component and an anisotropic speed of sound. Finally, we discuss the fate of each excitation mode at the low and high density phase transitions limiting the quantum quasicrystal phase. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"43 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Prediction of Room Temperature Electric Field Reversal of Magnetization in the Family of A4B3O9 Layered Oxides","authors":"Urmimala Dey, Emma E. McCabe, Jorge Íñiguez-González, Nicholas C. Bristowe","doi":"10.1103/physrevlett.134.136801","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136801","url":null,"abstract":"The promise of a strong magnetoelectric coupling in a multiferroic material is not only of fundamental interest, but also forms the basis of next generation memory devices where the direction of magnetization can be reversed by an external electric field. Using group-theory led first-principles calculations, we have identified a hitherto unknown polar phase of the A</a:mi>4</a:mn></a:msub>B</a:mi>3</a:mn></a:msub>O</a:mi>9</a:mn></a:msub></a:math> layered oxides, where the polar mode couples to the magnetic modes through a rare <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:mi mathvariant=\"normal\">Γ</d:mi></d:math>-point magnetoelectric-multiferroic coupling scheme such that the net magnetization can be directly reversed by an electric field switching of the polar mode. Furthermore, in agreement with previous experimental observations, we predict room temperature magnetism in <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:msub><g:mi>A</g:mi><g:mn>4</g:mn></g:msub><g:msub><g:mi>B</g:mi><g:mn>3</g:mn></g:msub><g:msub><g:mi mathvariant=\"normal\">O</g:mi><g:mn>9</g:mn></g:msub></g:math> oxides that indicates the promising practical applications of these compounds in the next generation memory devices. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"12 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143757784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Orbital-Excitation-Dominated Magnetization Dissipation and Quantum Oscillation of Gilbert Damping in Fe Films","authors":"Yue Chen, Haoran Chen, Xi Shen, Weizhao Chen, Yi Liu, Yizheng Wu, Zhe Yuan","doi":"10.1103/physrevlett.134.136701","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136701","url":null,"abstract":"Using first-principles electronic structure calculation, we demonstrate the spin dissipation process in bulk Fe by orbital excitations within the energy bands of pure spin character. The variation of orbitals in the intraband transitions provides an efficient channel to convert spin to orbital angular momentum with spin-orbit interaction. This mechanism dominates the Gilbert damping of Fe below room temperature. The theoretical prediction is confirmed by the ferromagnetic resonance experiment performed on single-crystal Fe(001) films. A significant thickness-dependent damping oscillation is found at low temperature induced by the quantum well states of the corresponding energy bands. Our findings not only explain the microscopic nature of the recently reported ultralow damping of Fe-based alloys but also help for the understanding of the transport and dissipation process of orbital currents. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"38 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Dynamical Excitation Control and Multimode Emission of an Atom-Photon Bound State","authors":"Claudia Castillo-Moreno, Kazi Rafsanjani Amin, Ingrid Strandberg, Mikael Kervinen, Amr Osman, Simone Gasparinetti","doi":"10.1103/physrevlett.134.133601","DOIUrl":"https://doi.org/10.1103/physrevlett.134.133601","url":null,"abstract":"Atom-photon bound states arise from the coupling of quantum emitters to the band edge of dispersion-engineered waveguides. Thanks to their tunable-range interactions, they are promising building blocks for quantum simulators. Here, we study the dynamics of an atom-photon bound state emerging from coupling a frequency-tunable quantum emitter—a transmon-type superconducting circuit—to the band edge of a microwave metamaterial. Employing precise temporal control over the frequency detuning of the emitter from the band edge, we examine the transition from adiabatic to nonadiabatic behavior in the formation of the bound state and its melting into the propagating modes of the metamaterial. Moreover, we experimentally observe multimode emission from the bound state, triggered by a fast change of the emitter’s frequency. Our Letter offers insight into the dynamic preparation of APBS and provides a method to characterize their photonic content, with implications in quantum optics and quantum simulation. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"280 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Chiral Superfluid Helium-3 in the Quasi-Two-Dimensional Limit","authors":"Petri J. Heikkinen, Lev V. Levitin, Xavier Rojas, Angadjit Singh, Nathan Eng, Andrew Casey, John Saunders, Anton Vorontsov, Nikolay Zhelev, Abhilash Thanniyil Sebastian, Jeevak M. Parpia","doi":"10.1103/physrevlett.134.136001","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136001","url":null,"abstract":"Anisotropic pair breaking close to surfaces favors the chiral A&lt;/a:mi&gt;&lt;/a:math&gt; phase of the superfluid &lt;c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;c:mrow&gt;&lt;c:mmultiscripts&gt;&lt;c:mrow&gt;&lt;c:mi&gt;He&lt;/c:mi&gt;&lt;/c:mrow&gt;&lt;c:mprescripts/&gt;&lt;c:none/&gt;&lt;c:mrow&gt;&lt;c:mn&gt;3&lt;/c:mn&gt;&lt;/c:mrow&gt;&lt;/c:mmultiscripts&gt;&lt;/c:mrow&gt;&lt;/c:math&gt; over the time-reversal invariant &lt;e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;e:mi&gt;B&lt;/e:mi&gt;&lt;/e:math&gt; phase. Confining the superfluid &lt;g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;g:mrow&gt;&lt;g:mmultiscripts&gt;&lt;g:mrow&gt;&lt;g:mi&gt;He&lt;/g:mi&gt;&lt;/g:mrow&gt;&lt;g:mprescripts/&gt;&lt;g:none/&gt;&lt;g:mrow&gt;&lt;g:mn&gt;3&lt;/g:mn&gt;&lt;/g:mrow&gt;&lt;/g:mmultiscripts&gt;&lt;/g:mrow&gt;&lt;/g:math&gt; into a cavity of height &lt;i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;i:mi&gt;D&lt;/i:mi&gt;&lt;/i:math&gt; of the order of the Cooper pair size characterized by the coherence length &lt;k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;k:msub&gt;&lt;k:mi&gt;ξ&lt;/k:mi&gt;&lt;k:mn&gt;0&lt;/k:mn&gt;&lt;/k:msub&gt;&lt;/k:math&gt;—ranging between 16 nm (34 bar) and 77 nm (0 bar)—extends the surface effects over the whole sample volume, thus allowing stabilization of the &lt;m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;m:mi&gt;A&lt;/m:mi&gt;&lt;/m:math&gt; phase at pressures &lt;o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;o:mi&gt;P&lt;/o:mi&gt;&lt;/o:math&gt; and temperatures &lt;q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;q:mi&gt;T&lt;/q:mi&gt;&lt;/q:math&gt; where otherwise the &lt;s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;s:mi&gt;B&lt;/s:mi&gt;&lt;/s:math&gt; phase would be stable. In this Letter, the surfaces of such a confined sample are covered with a superfluid &lt;u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;u:mrow&gt;&lt;u:mmultiscripts&gt;&lt;u:mrow&gt;&lt;u:mi&gt;He&lt;/u:mi&gt;&lt;/u:mrow&gt;&lt;u:mprescripts/&gt;&lt;u:none/&gt;&lt;u:mrow&gt;&lt;u:mn&gt;4&lt;/u:mn&gt;&lt;/u:mrow&gt;&lt;/u:mmultiscripts&gt;&lt;/u:mrow&gt;&lt;/u:math&gt; film to create specular quasiparticle scattering boundary conditions, preventing the suppression of the superfluid order parameter. We show that the chiral &lt;w:math xmlns:w=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;w:mi&gt;A&lt;/w:mi&gt;&lt;/w:math&gt; phase is the stable superfluid phase under strong confinement over the full &lt;y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;y:mrow&gt;&lt;y:mi&gt;P&lt;/y:mi&gt;&lt;y:mtext&gt;−&lt;/y:mtext&gt;&lt;y:mi&gt;T&lt;/y:mi&gt;&lt;/y:mrow&gt;&lt;/y:math&gt; phase diagram down to a quasi-two-dimensional limit D&lt;/ab:mi&gt;/&lt;/ab:mo&gt;ξ&lt;/ab:mi&gt;0&lt;/ab:mn&gt;&lt;/ab:msub&gt;=&lt;/ab:mo&gt;1&lt;/ab:mn&gt;&lt;/ab:math&gt;, where &lt;cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;cb:mi&gt;D&lt;/cb:mi&gt;&lt;cb:mo&gt;=&lt;/cb:mo&gt;&lt;cb:mn&gt;80&lt;/cb:mn&gt;&lt;cb:mtext&gt; &lt;/cb:mtext&gt;&lt;cb:mtext&gt; &lt;/cb:mtext&gt;&lt;cb:mi&gt;nm&lt;/cb:mi&gt;&lt;/cb:math&gt;. The planar phase, which is degenerate with the chiral &lt;eb:math xmlns:eb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;eb:mi&gt;A&lt;/eb:mi&gt;&lt;/eb:math&gt; phase in the weak-coupling limit, is not observed. The gap inferred from measurements over the wide pressure range from 0.2 t","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"33 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Closed Band-Projected Density Algebra Must Be Girvin-MacDonald-Platzman","authors":"Ziwei Wang, Steven H. Simon","doi":"10.1103/physrevlett.134.136502","DOIUrl":"https://doi.org/10.1103/physrevlett.134.136502","url":null,"abstract":"The band-projected density operators in a Landau level obey the Girvin-MacDonald-Platzman (GMP) algebra, and a large amount of effort in the study of fractional Chern insulators has been directed toward approximating this algebra in a Chern band. In this Letter, we prove that the GMP algebra, up to form factors, is the closed algebra that projected density operators can satisfy in two and three dimensions, highlighting the central place it occupies in the study of Chern bands in general. A number of interesting corollaries follow. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":"58 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}