31 citations · 69 across the 3 of their papers we have counts for
11 papers
Supersymmetry and multicriticality in a ladder of constrained fermions
Natalia Chepiga, Jiří Minář, Kareljan Schoutens
Supersymmetric lattice models of constrained fermions are known to feature exotic phenomena such as superfrustration, with an extensive degeneracy of ground states, the nature of w…
Lifshitz point at commensurate melting of 1D Rydberg atoms
Natalia Chepiga, Frédéric Mila
The recent investigation of chains of Rydberg atoms has brought back the problem of commensurate-incommensurate transitions into the focus of current research. In 2D classical syst…
Kibble-Zurek exponent and chiral transition of the period-4 phase of Rydberg chains
Natalia Chepiga, Frédéric Mila
Chains of Rydberg atoms have emerged as an amazing playground to study quantum physics in 1D. Playing with inter-atomic distances and laser detuning, one can in particular explore…
Ground-state properties of the hydrogen chain: insulator-to-metal transition, dimerization, and magnetic phases
Mario Motta, Claudio Genovese, Fengjie Ma +14
Accurate and predictive computations of the quantum-mechanical behavior of many interacting electrons in realistic atomic environments are critical for the theoretical design of ma…
Dimerization and effective decoupling in two spin-1 generalizations of the spin-1/2 Majumdar-Ghosh chain
Natalia Chepiga, Frédéric Mila
We perform a systematic DMRG investigation of the two natural spin-1 generalizations of the spin-1/2 Majumdar-Ghosh chain, the spin-1 Heisenberg chain, where is a n…
Comb tensor networks
Natalia Chepiga, Steven R. White
In this paper we propose a special type of a tree tensor network that has the geometry of a comb---a 1D backbone with finite 1D teeth projecting out from it. This tensor network is…