Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Patil, Pranay"'
Control landscape phase transitions (CLPTs) occur as abrupt changes in the cost function landscape upon varying a control parameter, and can be revealed by non-analytic points in statistical order parameters. A prime example are quantum speed limits
Externí odkaz:
http://arxiv.org/abs/2408.11110
Autor:
Patil, Pranay
Rydberg atom arrays have emerged as a powerful platform to simulate a number of exotic quantum ground states and phase transitions. To verify these capabilities numerically, we develop a versatile quantum Monte Carlo sampling technique which operates
Externí odkaz:
http://arxiv.org/abs/2309.00482
Publikováno v:
Phys. Rev. B 108, 195109 (2023)
Hilbert space fragmentation is an intriguing paradigm of ergodicity breaking in interacting quantum many-body systems with applications to quantum information technology, but it is usually adversely compromised in the presence of perturbations. In th
Externí odkaz:
http://arxiv.org/abs/2305.06371
Publikováno v:
Phys. Rev. E 107, 034119 (2023)
We present the analysis of the slowing down exhibited by stochastic dynamics of a ring-exchange model on a square lattice, by means of numerical simulations. We find the preservation of coarse-grained memory of initial state of density-wave types for
Externí odkaz:
http://arxiv.org/abs/2211.16788
Publikováno v:
Phys. Rev. B 105, L140403 (2022)
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 interest due to possible realizations in ultracold atom experiments an
Externí odkaz:
http://arxiv.org/abs/2109.10042
Publikováno v:
Phys. Rev. B 103, 054418 (2021)
We consider two-dimensional $q$-state quantum clock models with quantum fluctuations connecting states with clock transitions with different choices for matrix elements. We study the quantum phase transitions in these models using quantum Monte Carlo
Externí odkaz:
http://arxiv.org/abs/2009.03249
Publikováno v:
Phys. Rev. Research 2, 043425 (2020)
We numerically study the effects of non-magnetic impurities (vacancies) in the spin-$S$ Heisenberg antiferromagnet on the kagom\'e lattice. For a range of low but nonzero temperatures, and spin values that extend down to $S=2$, we find that the magne
Externí odkaz:
http://arxiv.org/abs/2009.01711
Publikováno v:
Phys. Rev. Research 3, 023095 (2021)
We propose a neural-network variational quantum algorithm to simulate the time evolution of quantum many-body systems. Based on a modified restricted Boltzmann machine (RBM) wavefunction ansatz, the proposed algorithm can be efficiently implemented i
Externí odkaz:
http://arxiv.org/abs/2008.13329
Autor:
Patil, Pranay, Sandvik, Anders W.
Publikováno v:
Phys. Rev. B 101, 014453 (2020)
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 special emphasis on the one dimensional case. We show that the dynamics gen
Externí odkaz:
http://arxiv.org/abs/1910.03714
Autor:
Patil, Pranay, Kourtis, Stefanos, Chamon, Claudio, Mucciolo, Eduardo R., Ruckenstein, Andrei E.
Publikováno v:
Phys. Rev. B 100, 054435 (2019)
We introduce a planar embedding of the k-regular k-XORSAT problem, in which solutions are encoded in the ground state of a classical statistical mechanics model of reversible logic gates arranged on a square grid and acting on bits that represent the
Externí odkaz:
http://arxiv.org/abs/1904.01860