246 citations · 670 across the 15 of their papers we have counts for
16 papers
Rényi Phase Transitions and Analytic Continuation to the von Neumann Entropy
Ayush Raj, Akash Vijay, Hong-Chen Jiang +1
Extracting operationally meaningful quantities such as von Neumann entropy and mutual information is central to characterizing many-body quantum systems, yet experiments and numeri…
Sub-cycle doublon-holon dynamics in one-dimensional Mott insulators revealed by two-color high-harmonic spectroscopy
Lance Hatch, Aditya Verma, Eric Schultz +7
Solid-state high-harmonic spectroscopy is becoming an emerging tool for probing nonequilibrium many-body dynamics. Yet, direct measurements of strongly driven, sub-optical-cycle dy…
Analytically Continuing the Randomized Measurement Toolbox
Akash Vijay, Ayush Raj, Jonah Kudler-Flam +3
We develop a framework for extracting non-polynomial analytic functions of density matrices in randomized measurement experiments by a method of analytical continuation. A central…
Rényi mutual information in quantum field theory, tensor networks, and gravity
Jonah Kudler-Flam, Laimei Nie, Akash Vijay
We explore a large class of correlation measures called the Rényi mutual informations (RMIs). Unlike the commonly used notion of RMI involving linear combinations of Rényi en…
Magnetic-field sensitive charge density wave orders in the superconducting phase of UTe2
Anuva Aishwarya, Julian May-Mann, Arjun Raghavan +8
The intense interest in triplet superconductivity partly stems from theoretical predictions of exotic excitations such as non-abelian Majorana modes, chiral supercurrents, and half…
Operator Growth and Symmetry-Resolved Coefficient Entropy in Quantum Maps
Laimei Nie
Operator growth, or operator spreading, describes the process where a "simple" operator acquires increasing complexity under the Heisenberg time evolution of a chaotic dynamics, th…
Thermalization of Randomly Coupled SYK Models
Ramanjit Sohal, Laimei Nie, Xiao-Qi Sun +1
We investigate the thermalization of Sachdev-Ye-Kitaev (SYK) models coupled via random interactions following quenches from the perspective of entanglement. Previous studies have s…
Information Scrambling with Conservation Laws
Jonah Kudler-Flam, Ramanjit Sohal, Laimei Nie
The delocalization or scrambling of quantum information has emerged as a central ingredient in the understanding of thermalization in isolated quantum many-body systems. Recently,…
Scrambling and Lyapunov Exponent in Unitary Networks with Tunable Interactions
Anna Keselman, Laimei Nie, Erez Berg
Scrambling of information in a quantum many-body system, quantified by the out-of-time-ordered correlator (OTOC), is a key manifestation of quantum chaos. A regime of exponential g…
Conformal field theory and the web of quantum chaos diagnostics
Jonah Kudler-Flam, Laimei Nie, Shinsei Ryu
We study three prominent diagnostics of chaos and scrambling in the context of two-dimensional conformal field theory: the spectral form factor, out-of-time-ordered correlators, an…
Collusion of Interactions and Disorder at the Superfluid-Insulator Transition: A Dirty 2d Quantum Critical Point
Hart Goldman, Alex Thomson, Laimei Nie +1
We study the stability of the Wilson-Fisher fixed point of the quantum vector model to quenched disorder in the large- limit. While a random mass is strongly re…
Signature of quantum chaos in operator entanglement in 2d CFTs
Laimei Nie, Masahiro Nozaki, Shinsei Ryu +1
We study operator entanglement measures of the unitary evolution operators of (1+1)-dimensional conformal field theories (CFTs), aiming to uncover their scrambling and chaotic beha…
Vestigial nematicity from spin and/or charge order in the cuprates
Laimei Nie, Akash V. Maharaj, Eduardo Fradkin +1
Nematic order has manifested itself in a variety of materials in the cuprate family. We propose an effective field theory of a layered system with incommensurate, intertwined spin-…
Ideal charge density wave order in the high-field state of superconducting YBCO
H. Jang, W. -S. Lee, H. Nojiri +20
The existence of charge density wave (CDW) correlations in cuprate superconductors has now been established. However, the nature of the ground state order has remained uncertain be…
Fluctuating orders and quenched randomness in the cuprates
Laimei Nie, Lauren E. Hayward Sierens, Roger G. Melko +2
We study a quasi-2D classical Landau-Ginzburg-Wilson effective field theory in the presence of quenched disorder in which incommensurate charge-density wave and superconducting ord…
Quenched disorder and vestigial nematicity in the pseudo-gap regime of the cuprates
Laimei Nie, Gilles Tarjus, S. A. Kivelson
We have carried out a theoretical analysis of the Landau-Ginzburg-Wilson effective field theory of a classical incommensurate CDW in the presence of weak quenched disorder. While t…