Phase transition from eigenstate thermalization: forbidden singularity and instanton proliferation via AGT correspondence

Posted by klaurent UCAS

Kavli Affiliate: Huajia Wang | Summary:In theoretical physics, finding connections between problems that appear in distinct contexts is an important way to leapfrog progresses, often by illuminating deep aspects that may otherwise seem obscure. In this paper, we consider in 2d CFTs the phenomenon of forbidden singularities in auto-correlation functions — a key signature of […]


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Lee-Yang paradigm of phase transition in eigenstate thermalized systems

Posted by klaurent UCAS

Kavli Affiliate: Huajia Wang | Summary:As phase transitions in isolated quantum systems remain elusive, here we show how a thermodynamic-like phase transition, falling into the Lee-Yang paradigm, can arise in systems displaying eigenstate thermalization. Specifically, we show that in holographic conformal field theories, the eigenstate expectation of the auto-correlation function can be mapped to the […]


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TIC 433545934: The first 2+2 type doubly eclipsing binary with extra, mutual eclipses

Posted by klaurent MIT

Kavli Affiliate: Saul Rappaport | Summary:In this work we identify and photodynamically analyze TIC 433545934, the very first doubly eclipsing 2+2-type quadruple stellar system, which shows outer eclipses, too. One such outer eclipse was discovered with TESS, which triggered a special interest in this system. Most of the data for this study come from TESS […]


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Supersymmetry, differential operators of infinite order and theta functions

Posted by klaurent Tokyo

Kavli Affiliate: Mikhail Kapranov | Summary:In 1972, M. Sato proposed an approach to proving modularity of forms like Thetanullwerte by characterizing them via certain differential operators of infinite order (DOI) in the modular variable(s) alone. A DOI is an infinite series in derivatives decreasing so fast that it acts on holomorphic functions by a sheaf […]


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Improved Measurement Cost Scaling in the Nonorthogonal Quantum Eigensolver

Posted by klaurent Berkeley

Kavli Affiliate: Birgitta Whaley | Summary:Quantum subspace diagonalization methods are promising algorithms for quantum chemistry on near-term quantum computers. These methods can estimate low-lying energies of molecular systems using shallow quantum circuits, at the cost of many circuit repetitions to estimate the projected matrix elements. Errors in these matrix elements can be converted into much […]


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Coordination of turn-related activity in the superior colliculus with locomotor dynamics and hippocampal representations of possible futures

Posted by dbos UCSD / Salk, UCSF

Kavli Affiliate: Massimo Scanziani and Loren Frank | Authors: Cameron Wilhite, Loren M. Frank and Massimo Scanziani | Summary: Turning left or right is a core element of animal navigation. Such turns occur in precise coordination with the ongoing stepping rhythm and require internal planning for the animal’s future path. The superior colliculus (SC) is […]


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Smells like γ-synchrony: Insula-prefrontal communication depends on γ-synchrony and supports modality-specific changes in behavioral strategies

Posted by dbos UCSF

Kavli Affiliate: Vikaas Sohal | Authors: Lara L. Hagopian, Aarron J. Phensy, Austin J. Gallagher and Vikaas S. Sohal | Summary: The prefrontal cortex is critical for many aspects of flexible behavior, but how it interacts with other brain regions to perform this function remains largely unknown. The insula is bidirectionally coupled with prefrontal cortex […]


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Floquet Quasiparticle Poisoning of Frozonium

Posted by klaurent Cornell

Kavli Affiliate: Debanjan Chowdhury | Summary:Periodic driving can suppress the Josephson nonlinearity of a fluxonium superconducting circuit, producing a nearly harmonic Floquet spectrum at isolated freezing points [K. Lewellen et al., Newton 2, 100434 (2026)]. Here we show that this dynamically frozen behavior does not generically suppress quasiparticle-induced dissipation in the resulting frozonium circuit. We […]


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