E. Demler

Publications589
h-index76
Citations22,644
Highly Influential Citations478
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Exploring topological phases with quantum walks
The quantum walk was originally proposed as a quantum-mechanical analog of the classical random walk, and has since become a powerful tool in quantum information science. In this paper, we show that…
A single-photon transistor using nanoscale surface plasmons
Photons rarely interact—which makes it challenging to build all-optical devices in which one light signal controls another. Even in nonlinear optical media, in which two beams can interact because of…
Controlling spin exchange interactions of ultracold atoms in optical lattices.
TLDR
It is illustrated how this technique can be used to efficiently "engineer" quantum spin systems with desired properties, for specific examples ranging from scalable quantum computation to probing a model with complex topological order that supports exotic anyonic excitations.
Direct measurement of the Zak phase in topological Bloch bands
Geometric phases that characterize the topological properties of Bloch bands play a fundamental role in the band theory of solids. Here we report on the measurement of the geometric phase acquired by…
Two-orbital SU(N) magnetism with ultracold alkaline-earth atoms
Fermionic alkaline-earth atoms have unique properties that make them attractive candidates for the realization of atomic clocks and degenerate quantum gases. At the same time, they are attracting…
Topological Characterization of Periodically-Driven Quantum Systems
Topological properties of physical systems can lead to robust behaviors that are insensitive to microscopic details. Such topologically robust phenomena are not limited to static systems but can also…
Fractional quantum Hall states of atoms in optical lattices.
TLDR
The dynamics of the atoms in the lattice is analogous to the motion of a charged particle in a magnetic field if an oscillating quadrupole potential is applied together with a periodic modulation of the tunneling between lattice sites.
Anomalous diffusion and griffiths effects near the many-body localization transition.
TLDR
This work explores the high-temperature dynamics of the disordered, one-dimensional XXZ model near the many-body localization (MBL) transition, focusing on the delocalized (i.e., "metallic") phase, and establishes scaling relations between the associated exponents, assuming a scaling form of the spin-diffusion propagator.
Relaxation and Prethermalization in an Isolated Quantum System
TLDR
Measurements of full quantum mechanical probability distributions of matter-wave interference are used to study the relaxation dynamics of a coherently split one-dimensional Bose gas and obtained comprehensive information about the dynamical states of the system.
Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
Cavity spectroscopy measurements elucidate the Fermi polaron nature of the optical excitations in monolayer transition metal dichalcogenides. The dynamics of a mobile quantum impurity in a degenerate…
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