95 citations · 746 across the 39 of their papers we have counts for
6 papers · 1 filter
Critical Behavior and Collective Modes at the Superfluid Transition in Amorphous Systems
Vishnu Pulloor Kuttanikkad, Martin Puschmann, Rajesh Narayanan +1
We investigate the critical behavior and the dynamics of the amplitude (Higgs) mode close to the superfluid-insulator quantum phase transition in an amorphous system (i.e., a syste…
Stripe order, impurities, and symmetry breaking in a diluted frustrated magnet
Xuecheng Ye, Rajesh Narayanan, Thomas Vojta
We investigate the behavior of the frustrated - Ising model on a square lattice under the influence of random dilution and spatial anisotropies. Spinless impurities gener…
Tuning a random field mechanism in a frustrated magnet
Shashikant Singh Kunwar, Arnab Sen, Thomas Vojta +1
We study the influence of spinless impurities on a frustrated magnet featuring a spin-density wave (stripe) phase by means of Monte Carlo simulations. We demonstrate that the inter…
Emerging criticality in the disordered three-color Ashkin-Teller model
Qiong Zhu, Xin Wan, Rajesh Narayanan +2
We study the effects of quenched disorder on the first-order phase transition in the two-dimensional three-color Ashkin-Teller model by means of large-scale Monte Carlo simulations…
An Anomalously Elastic, Intermediate Phase in Randomly Layered Superfluids, Superconductors, and Planar Magnets
Priyanka Mohan, Paul M. Goldbart, Rajesh Narayanan +2
We show that layered quenched randomness in planar magnets leads to an unusual intermediate phase between the conventional ferromagnetic low-temperature and paramagnetic high-tempe…
The effect of rare regions on a disordered itinerant quantum antiferromagnet with cubic anisotropy
Rajesh Narayanan, Thomas Vojta
We study the quantum phase transition of an itinerant antiferromagnet with cubic anisotropy in the presence of quenched disorder, paying particular attention to the locally ordered…