54 citations · 177 across the 12 of their papers we have counts for
8 papers · 1 filter
Eigenstate thermalization at the edge of the many-body spectrum
Arnav Pushkar, Pranay Patil, Soumya Bera +2
It is well-known that thermalization breaks down in presence of an extensive number of symmetries or conservation laws that are mutually compatible or commuting with each other. We…
Weakly first-order quantum phase transition between Spin Nematic and Valence Bond Crystal Order in a square lattice SU(4) fermionic model
Pranay Patil, Fabien Alet, Sylvain Capponi +1
We consider a model Hamiltonian with two SU(4) fermions per site on a square lattice, showing a competition between bilinear and biquadratic interactions. This model has generated…
Unconventional U(1) to cross-over in quantum and classical -state clock models
Pranay Patil, Hui Shao, Anders W. Sandvik
We consider two-dimensional -state quantum clock models with quantum fluctuations connecting states with clock transitions with different choices for matrix elements. We study t…
Quantum half-orphans in kagome antiferromagnets
Pranay Patil, Fabien Alet, Sylvain Capponi +1
We numerically study the effects of non-magnetic impurities (vacancies) in the spin- Heisenberg antiferromagnet on the kagomé lattice. For a range of low but nonzero temperature…
Hilbert Space Fragmentation and Ashkin-Teller Criticality in Fluctuation Coupled Ising Models
Pranay Patil, Anders W. Sandvik
We discuss the effects of exponential fragmentation of the Hilbert space on phase transitions in the context of coupled ferromagnetic Ising models in arbitrary dimension with speci…
Numerical Investigations of SO(4) Emergent Extended Symmetry in Spin-1/2 Heisenberg Antiferromagnetic Chains
Pranay Patil, Emanuel Katz, Anders W. Sandvik
The antiferromagnetic Heisenberg chain is expected to have an extended symmetry, [SU(2)xSU(2)]/Z 2 , in the infrared limit, whose physical interpretation is that the spin and dimer…
Indicators of Conformal Field Theory: entanglement entropy and multiple-point correlators
Pranay Patil, Ying Tang, Emanuel Katz +1
The entanglement entropy (EE) of quantum systems is often used as a test of low-energy descriptions by conformal field theory (CFT). Here we point out that this is not a reliable i…
Resonating valence-bond physics on the honeycomb lattice
Pranay Patil, Ishita Dasgupta, Kedar Damle
We study bond and spin correlations of the nearest-neighbour resonating valence bond (RVB) wavefunction for a SU() symmetric antiferromagnet on the honeycomb lattice. We…