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Polaroid logo Via https://www.logohistories.com/p/polaroid-logo-26b
https://migurski.tumblr.com/post/78318…

Polaroid Logo – Logo Histories
The story of Paul Giambarba's corporate identity for Polaroid. Told by Logo Histories, a project by Richard Baird.

Kardar--Parisi--Zhang universality in optically induced lattices of exciton--polariton condensates
D. Novokreschenov, V. Neplokh, M. Misko, N. Starkova, T. Cookson, A. Kudlis, A. Nalitov, I. A. Shelykh, A. V. Kavokin, P. Lagoudakis
https://arxiv.org/abs/2506.10187

Kardar--Parisi--Zhang universality in optically induced lattices of exciton--polariton condensates
We investigate space-time coherence in one-dimensional lattices of exciton-polariton condensates formed by fully reconfigurable non-resonant optical pumping. Starting from an open-dissipative Gross-Pitaevskii equation with deterministic reservoir kinetics and stochastic condensate noise, we derive a discrete complex-field model that incorporates coherent tunnelling, reservoir-mediated dissipative coupling and gain-saturation non-linearity. Adiabatic elimination of fast density fluctuations reve…

Exciton Delocalization Suppresses Polariton Scattering
Yongseok Hong, Ding Xu, Milan Delor
https://arxiv.org/abs/2506.08770 https://a…

Exciton Delocalization Suppresses Polariton Scattering
Exciton-polaritons (EPs) are part-light part-matter quasiparticles that combine large exciton-mediated nonlinearities with long-range coherence, ideal for energy harvesting and nonlinear optics. Optimizing EPs for these applications is predicated on a still-elusive understanding of how disorder affects their propagation and dephasing times. Here, using cutting-edge femtosecond spatiotemporal microscopy, we directly image EP propagation at light-like speeds in systems ranging from two-dimensiona…

Light-Matter Entanglement in Real-Time Nuclear-Electronic Orbital Polariton Dynamics
Millan F. Welman, Tao E. Li, Sharon Hammes-Schiffer
https://arxiv.org/abs/2506.06490

Light-Matter Entanglement in Real-Time Nuclear-Electronic Orbital Polariton Dynamics
Molecular polaritons are hybrid light-matter states that enable the exploration of potential cavity-modified chemistry. The development of dynamical, first-principles approaches for simulating molecular polaritons is important for understanding their origins and properties. Herein, we present a hierarchy of first-principles methods to simulate the real-time dynamics of molecular polaritons in the strong coupling regime. These methods are based on real-time time-dependent density functional theo…

Tunability of Robust Exciton-Trion Polaritons in Atomically Thin WS2 Monolayers
Xuguang Cao, Debao Zhang, Ji Zhou, Wanggui Ye, Changcheng Zheng, Kenji Watanabe, Takashi Taniguchi, Jiqiang Ning, Shijie Xu
https://arxiv.org/abs/2506.07030

Tunability of Robust Exciton-Trion Polaritons in Atomically Thin WS2 Monolayers
Herein, we present an experimental demonstration of the robust exciton-trion polaritons (ETPs) by measuring and simulating the resonance reflectance spectra of various configurational WS2 monolayers with different dielectric screenings. Moreover, the oscillator strength and decoherent behavior of such hybrid ETPs can be tuned via utilizing dielectric screening effect. The effect is attributed to the regulation of the Coulomb coupling between excitons and trions by changing the surrounding diele…

Fast Estimation of Globally Optimal Independent Contact Regions for Robust Grasping and Manipulation
Jonathan P. King, Harnoor Ahluwalia, Michael Zhang, Nancy S. Pollard
https://arxiv.org/abs/2506.08856

Fast Estimation of Globally Optimal Independent Contact Regions for Robust Grasping and Manipulation
This work presents a fast anytime algorithm for computing globally optimal independent contact regions (ICRs). ICRs are regions such that one contact within each region enables a valid grasp. Locations of ICRs can provide guidance for grasp and manipulation planning, learning, and policy transfer. However, ICRs for modern applications have been little explored, in part due to the expense of computing them, as they have a search space exponential in the number of contacts. We present a divide an…

Ground state exciton-polariton condensation by coherent Floquet driving
Alexander Kuznetsov, Ignacio Carraro-Haddad, Gonzalo Usaj, Klaus Biermann, Alejandro Fainstein, Paulo V. Santos
https://arxiv.org/abs/2506.05874

Ground state exciton-polariton condensation by coherent Floquet driving
The on-demand selective population transfer between states in multilevel quantum systems is a challenging problem with implications for a wide-range of physical platforms including photon and exciton-polariton Bose- Einstein condensates (BECs). Here, we introduce an universal strategy for this selective transfer based on a strong time-periodic energy modulation, which is experimentally demonstrated by using a GHz acoustic wave to control the gain and loss of confined modes of an exciton-polarit…

Cavity-mediated exciton hopping in a dielectrically engineered polariton system
Lukas Husel, Farsane Tabataba-Vakili, Johannes Scherzer, Lukas Krelle, Ismail Bilgin, Samarth Vadia, Kenji Watanabe, Takashi Taniguchi, Iacopo Carusotto, Alexander H\"ogele
https://arxiv.org/abs/2506.05561…

Cavity-mediated exciton hopping in a dielectrically engineered polariton system
Exciton-polaritons - coherently hybridized states of excitons and photons - are instrumental for solid-state nonlinear optics and quantum simulations. To enable engineered polariton energy landscapes and interactions, local control over the particle-like states can be achieved by tuning the properties of the exciton constituent. Monolayer transition metal dichalcogenides stand out in this respect, as they readily allow for a deterministic, flexible and scalable control of excitons, and thus of …

Polaron-Polariton Assisted Thermally Activated Superradiance
Yi-Ting Chuang, Liang-Yan Hsu
https://arxiv.org/abs/2506.07110 https://a…

Polaron-Polariton Assisted Thermally Activated Superradiance
We predict an anomalous thermally activated superradiance in one-dimensional J aggregates coupled to surface plasmon polaritons. Unlike in the free-space case, the superradiant emission is enhanced either by increasing the exciton-phonon coupling strength or by increasing the temperature. This counterintuitive phenomenon is captured by a microscopic theory that combines macroscopic quantum electrodynamics with a modified polaron quantum master equation approach, revealing a nontrivial interplay…

Strong coupling and interfering resonances in isolated van der Waals nanoresonators
Qi Ding, Swain Ashutosh, Luca Sortino, Thomas Weber, Lucca K\"uhner, Stefan A Maier, Sergey Kruk, Yuri Kivshar, Andreas Tittl, Wei Wang
https://arxiv.org/abs/2506.08510

Strong coupling and interfering resonances in isolated van der Waals nanoresonators
The study of strong light-matter interaction in van der Waals materials is at the forefront of current research in physics and chemistry, and it can be enhanced dramatically by employing resonances. Here we present the first observation of quasi-bound states in the continuum (qBICs) realized via polaritonic interfering resonances in isolated WS$_2$ nanodisks. We experimentally validate the existence of polaritonic qBICs driven by intrinsic coupling of Mie resonances and excitons. The system exh…