241 citations · 869 across the 18 of their papers we have counts for
18 papers
Neural-Network Decoders for Measurement Induced Phase Transitions
Hossein Dehghani, Ali Lavasani, Mohammad Hafezi +1
Open quantum systems have been shown to host a plethora of exotic dynamical phases. Measurement-induced entanglement phase transitions in monitored quantum systems are a striking e…
Optical conductivity and orbital magnetization of Floquet vortex states
Iman Ahmadabadi, Hossein Dehghani, Mohammad Hafezi
Motivated by recent experimental demonstrations of Floquet topological insulators, there have been several theoretical proposals for using structured light, either spatial or spect…
Practical KMP/BM Style Pattern-Matching on Indeterminate Strings
Hossein Dehghani, Neerja Mhaskar, W. F. Smyth
In this paper we describe two simple, fast, space-efficient algorithms for finding all matches of an indeterminate pattern in an indeterminate string , w…
Monitoring-induced Entanglement Entropy and Sampling Complexity
Mathias Van Regemortel, Oles Shtanko, Luis Pedro Garcia-Pintos +4
The dynamics of open quantum systems is generally described by a master equation, which describes the loss of information into the environment. By using a simple model of uncoupled…
Unsupervised Learning of Symmetry Protected Topological Phase Transitions
En-Jui Kuo, Hossein Dehghani
Symmetry-protected topological (SPT) phases are short-range entangled phases of matter with a non-local order parameter which are preserved under a local symmetry group. Here, by u…
Floquet vortex states induced by light carrying the orbital angular momentum
Hwanmun Kim, Hossein Dehghani, Iman Ahmadabadi +2
We propose a scheme to create an electronic Floquet vortex state by irradiating a two-dimensional semiconductor with the laser light carrying non-zero orbital angular momentum. We…
Entanglement entropy scaling transition under competing monitoring protocols
Mathias Van Regemortel, Ze-Pei Cian, Alireza Seif +2
Dissipation generally leads to the decoherence of a quantum state. In contrast, numerous recent proposals have illustrated that dissipation can also be tailored to stabilize many-b…
Optically induced topological superconductivity via Floquet interaction engineering
Hossein Dehghani, Mohammad Hafezi, Pouyan Ghaemi
We propose a mechanism for light-induced unconventional superconductivity in a two-valley semiconductor with a massive Dirac type band structure. The superconducting phase results…
Extraction of many-body Chern number from a single wave function
Hossein Dehghani, Ze-Pei Cian, Mohammad Hafezi +1
The quantized Hall conductivity of integer and fractional quantum Hall (IQH and FQH) states is directly related to a topological invariant, the many-body Chern number. The conventi…
Many-body Chern number from statistical correlations of randomized measurements
Ze-Pei Cian, Hossein Dehghani, Andreas Elben +5
One of the main topological invariants that characterizes several topologically-ordered phases is the many-body Chern number (MBCN). Paradigmatic examples include several fractiona…
Optical imprinting of superlattices in two-dimensional materials
Hwanmun Kim, Hossein Dehghani, Hideo Aoki +2
We propose an optical method of shining circularly polarized and spatially periodic laser fields to imprint superlattice structures in two-dimensional electronic systems. By changi…
Optical Enhancement of Superconductivity via Targeted Destruction of Charge Density Waves
Hossein Dehghani, Zachary M. Raines, Victor M. Galitski +1
It has been experimentally established that the occurrence of charge density waves is a common feature of various under-doped cuprate superconducting compounds. The observed states…
Dynamical generation of superconducting order of different symmetries in hexagonal lattices
Hossein Dehghani, Aditi Mitra
The growth of superconducting order after an interaction quench in a hexagonal lattice is studied. The cases of both time-reversal (TR) preserving graphene, as well as the TR broke…
Occupation probabilities and current densities of bulk and edge states of a Floquet topological insulator
Hossein Dehghani, Aditi Mitra
Results are presented for the occupation probabilities and current densities of bulk and edge states of half-filled graphene in a cylindrical geometry, and irradiated by a circular…
Floquet topological systems in the vicinity of band crossings: Reservoir induced coherence and steady-state entropy production
Hossein Dehghani, Aditi Mitra
Results are presented for an open Floquet topological system represented by Dirac fermions coupled to a circularly polarized laser and an external reservoir. It is shown that when…
Optical Hall conductivity of a Floquet Topological Insulator
Hossein Dehghani, Aditi Mitra
Results are presented for the optical Hall conductivity of a Floquet topological insulator (FTI) for an ideal closed quantum system, as well as an open system in a nonequilibrium s…
Out of equilibrium electrons and the Hall conductance of a Floquet topological insulator
Hossein Dehghani, Takashi Oka, Aditi Mitra
Graphene irradiated by a circularly polarized laser has been predicted to be a Floquet topological insulator showing a laser-induced quantum Hall effect. A circularly polarized las…
Dissipative Floquet Topological Systems
Hossein Dehghani, Takashi Oka, Aditi Mitra
Motivated by recent pump-probe spectroscopies, we study the effect of phonon dissipation and potential cooling on the nonequilibrium distribution function in a Floquet topological…