6 citations · 9 across the 7 of their papers we have counts for
8 papers
Postselection-free ballistic-diffusive transition in monitored spin chains
K. G. S. H. Gunawardana, Ali G. Moghaddam, Teemu Ojanen
We study spin and entanglement dynamics in spin-1/2 XXZ chains under periodic monitoring and show that this system exhibits two measurement-induced phase transitions: a steady-stat…
Measurement Induced Asymmetric Entanglement in a Deconfined Quantum Critical Ground State
K. G. S. H. Gunawardana
In this work, we numerically study the effect of weak measurement on deconfined quantum critical point(DQCP). Particularly, we consider the ground state of an one-dimensional spin…
Disorder free many-body localization transition in two quasiperiodically coupled Heisenberg spin chains
K. G. S. H. Gunawardana, Bruno Uchoa
Disorder free many-body localization (MBL) can occur in interacting systems that can dynamically generate their own disorder. We address the thermal-MBL phase transition of two iso…
Optimal Matching of Thermal Vibrations into Carbon Nanotubes
K. G. S. H. Gunawardana, Kieran Mullen
Carbon nanotubes (CNTs) are promising candidates to improve the thermal conductivity of nano-composites. The main obstacle to these applications is the extremely high thermal bound…
Andreev reflection in edge states of time reversal invariant Landau levels
K. G. S. H. Gunawardana, Bruno Uchoa
We describe the conductance of a normal-superconducting junction in systems with Landau levels that preserve time reversal symmetry. Those Landau levels have been observed in strai…
R-matrix theory for nanoscale phonon thermal transport across devices and interfaces
K. G. S. H. Gunawardana, Kieran Mullen
We have adapted R-matrix theory to calculate phonon scattering across systems of molecular to mesoscopic scale. The key novelty of this work is that the only required information a…
Tunable Thermal Transport and Thermal Rectification in Strained Graphene Nanoribbons
K. G. S. H. Gunawardana, Kieran Mullen, Jiuning Hu +2
Using molecular dynamics(MD) simulations, we study thermal transport in graphene nanoribbons (GNR) subjected to uniform uniaxial and nonuniform strain fields. We predict significan…
Efficient Random Walk Algorithm for Simulating Thermal Transport in Composites With High Conductivity Contrast
K. G. S. H. Gunawardana, Kieran Mullen, Dimitrios V. Papavassiliou
In dealing with thermal transport in composite systems, high contrast materials pose a special problem for numerical simulation: the time scale or step size in the high conductivit…