135 citations · 783 across the 17 of their papers we have counts for
17 papers
Disentangling transitions in topological order induced by boundary decoherence
Tsung-Cheng Lu
We study the entanglement structure of topological orders subject to decoherence on the bipartition boundary. Focusing on the toric codes in space dimensions for , we…
Mixed-state long-range order and criticality from measurement and feedback
Tsung-Cheng Lu, Zhehao Zhang, Sagar Vijay +1
We propose a general framework for using local measurements, local unitaries, and non-local classical communication to construct quantum channels which can efficiently prepare mixe…
Experimental demonstration of the advantage of adaptive quantum circuits
Michael Foss-Feig, Arkin Tikku, Tsung-Cheng Lu +16
Adaptive quantum circuits employ unitary gates assisted by mid-circuit measurement, classical computation on the measurement outcome, and the conditional application of future unit…
Measurement as a shortcut to long-range entangled quantum matter
Tsung-Cheng Lu, Leonardo A. Lessa, Isaac H. Kim +1
The preparation of long-range entangled states using unitary circuits is limited by Lieb-Robinson bounds, but circuits with projective measurements and feedback (``adaptive circuit…
Entanglement Negativity and Mutual Information after a Quantum Quench: Exact Link from Space-Time Duality
Bruno Bertini, Katja Klobas, Tsung-Cheng Lu
We study the growth of entanglement between two adjacent regions in a tripartite, one-dimensional many-body system after a quantum quench. Combining a replica trick with a space-ti…
Anomalous localization and multifractality in a kicked quasicrystal
Toshihiko Shimasaki, Max Prichard, H. Esat Kondakci +7
Multifractal states offer a "third way" for quantum matter, neither fully localized nor ergodic, exhibiting singular continuous spectra, self-similar wavefunctions, and transport a…
Entanglement cost in topological stabilizer models at finite temperature
Tsung-Cheng Lu, En-Jui Kuo, Hung-Hwa Lin
The notion of entanglement has been useful for characterizing universal properties of quantum phases of matter. From the perspective of quantum information theory, it is tempting t…
Characterizing Long-Range Entanglement in a Mixed State Through an Emergent Order on the Entangling Surface
Tsung-Cheng Lu, Sagar Vijay
Topologically-ordered phases of matter at non-zero temperature are conjectured to exhibit universal patterns of long-range entanglement which may be detected by a mixed-state entan…
Spacetime duality between localization transitions and measurement-induced transitions
Tsung-Cheng Lu, Tarun Grover
Time evolution of quantum many-body systems typically leads to a state with maximal entanglement allowed by symmetries. Two distinct routes to impede entanglement growth are induci…
Entanglement transitions as a probe of quasiparticles and quantum thermalization
Tsung-Cheng Lu, Tarun Grover
We introduce a diagnostic for quantum thermalization based on mixed-state entanglement. Specifically, given a pure state on a tripartite system , we study the scaling of entan…
Detecting Topological Order at Finite Temperature Using Entanglement Negativity
Tsung-Cheng Lu, Timothy H. Hsieh, Tarun Grover
We propose a diagnostic for finite temperature topological order using `topological entanglement negativity', the long-range component of a mixed-state entanglement measure. As a d…
Entanglement Renyi negativity across a finite temperature transition: a Monte Carlo study
Kai-Hsin Wu, Tsung-Cheng Lu, Chia-Min Chung +2
Quantum entanglement is fragile to thermal fluctuations, which raises the question whether finite temperature phase transitions support long-range entanglement similar to their zer…
Structure of Quantum Entanglement at a Finite Temperature Critical Point
Tsung-Cheng Lu, Tarun Grover
We propose a scheme to characterize long-range quantum entanglement close to a finite temperature critical point using tripartite entanglement negativity. As an application, we stu…
Singularity in Entanglement Negativity Across Finite Temperature Phase Transitions
Tsung-Cheng Lu, Tarun Grover
Phase transitions at a finite (i.e. non-zero) temperature are typically dominated by classical correlations, in contrast to zero temperature transitions where quantum mechanics pla…
Renyi Entropy of Chaotic Eigenstates
Tsung-Cheng Lu, Tarun Grover
Using arguments built on ergodicity, we derive an analytical expression for the Renyi entanglement entropies corresponding to the finite-energy density eigenstates of chaotic many-…
Fluctuation-induced dissipation in evolutionary dynamics
Tsung-Cheng Lu, Yi-Ko Chen, Hsiu-Hau Lin +1
Biodiversity and extinction are central issues in evolution. Dynamical balance among different species in ecosystems is often described by deterministic replicator equations with m…
Zero-mode anomaly in the RKKY interaction on bipartite lattices
Tsung-Cheng Lu, Hsiu-Hau Lin
Carrier-mediated Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction plays an important role in itinerant magnetism. There have been intense interest on its general trend on bipartite…