Quantum droplets of electrons and holes

  title={Quantum droplets of electrons and holes},
  author={Andrew E. Almand-Hunter and H. Li and Steven T. Cundiff and Martin Mootz and M. Kira and Stephan W. Koch},
Interacting many-body systems are characterized by stable configurations of objects—ranging from elementary particles to cosmological formations—that also act as building blocks for more complicated structures. It is often possible to incorporate interactions in theoretical treatments of crystalline solids by introducing suitable quasiparticles that have an effective mass, spin or charge which in turn affects the material’s conductivity, optical response or phase transitions. Additional… 
Electronic excitations stabilized by a degenerate electron gas in semiconductors
Excitons in semiconductors and insulators consist of fermionic subsystems, electrons and holes, whose attractive interaction facilitates bound quasiparticles with quasi-bosonic character. In the
Lightwave-driven quasiparticle collisions on a sub-cycle timescale
Lightwave-driven charge transport is exploited, the foundation of attosecond science, to explore ultrafast quasiparticle collisions directly in the time domain and suggests a promising new way of generating sub-femtosecond pulses.
The Quadruplon in a Monolayer Semiconductor
Understanding the structure of matter and interaction or correlations among the constituent elementary particles are the central tasks of all branches of science, from physics, chemistry, to biology.
Electron–hole liquid in a van der Waals heterostructure photocell at room temperature
In semiconductors, photo-excited charge carriers exist as a gas of electrons and holes, bound electron–hole pairs (excitons), biexcitons and trions1–4. At sufficiently high densities, the
Excitation picture of an interacting Bose gas
Exciton Mott Transition in Two-Dimensional Semiconductors
Exciton many-body interaction bear great implication for application in advanced photonic devices and quantum science and technology such as quantum computing, but the fundamental understanding about
Many-particle correlations in microscopic electron–hole droplets
Many-particle effects in two-component systems composed of two types of oppositely charged fermions are studied. The influence of mass ratio of the particles on physical properties of microscopic
2D condensate of electrons and holes in ultrathin MoTe$_2$ photocells
The electron-hole liquid, which features a macroscopic population of correlated electrons and holes, may offer a path to room temperature semiconductor devices that harness collective electronic
Electron–hole liquid in semiconductors and low-dimensional structures
The condensation of excitons into an electron–hole liquid (EHL) and the main EHL properties in bulk semiconductors and low-dimensional structures are considered. The EHL properties in bulk materials
Valley engineering electron-hole liquids in TMDC monolayers
Electron-hole liquids(EHLs), a correlated state of matter and a thermodynamic liquid, have recently been found to exist at room temperature in suspended monolayers of MoS 2 . Appreciably higher rates


Ultrafast terahertz probes of transient conducting and insulating phases in an electron–hole gas
An ultrafast terahertz probe is employed to investigate directly the dynamical interplay of optically-generated excitons and unbound electron–hole pairs in GaAs quantum wells, revealing an unexpected quasi-instantaneous excitonic enhancement, the formation of insulating excitONS on a 100-ps timescale, and the conditions under which excitonics populations prevail.
How many-particle interactions develop after ultrafast excitation of an electron–hole plasma
It is shown that the onset of collective behaviour such as Coulomb screening and plasmon scattering exhibits a distinct time delay of the order of the inverse plasma frequency, that is, several 10-14 seconds after ultrafast excitation of an electron–hole plasma in GaAs.
Evolution of the pseudogap from Fermi arcs to the nodal liquid
The response of a material to external stimuli depends on its low-energy excitations. In conventional metals, these excitations are electrons on the Fermi surface—a contour in momentum (k) space that
Coherent measurements of high-order electronic correlations in quantum wells
The measurement methods open a new window into high-order many-body interactions in materials and molecules, and the present results should guide ongoing work on first-principles calculations of electronic interactions in semiconductor nanostructures.
Electron-Hole Condensation in Semiconductors
The electron-hole drop represents the first example of a quantum liquid of constant density in a periodic crystal lattice and will be found to exist in other semiconductors, perhaps at even higher temperatures.
Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mott Insulators
By using high-resolution imaging of low-dimensional quantum gases in an optical lattice, this work directly detects correlated particle-hole pairs with single-site and single-particle sensitivity and observes string order in the one-dimensional case.
Thermodynamics of biexcitons in a GaAs quantum well.
  • KimWakeWolfe
  • Physics
    Physical review. B, Condensed matter
  • 1994
Time- and space-resolved photoluminescence data imply a dynamic chemical equilibrium between the excitons and biexcitons, i.e., a law of mass action, based on the interdependent temporal decay and spatial transport behavior of the two components on a picosecond time scale.
Semiconductor Quantum Optics
The emerging field of semiconductor quantum optics combines semiconductor physics and quantum optics, with the aim of developing quantum devices with unprecedented performance. In this book
Synthesis of nuclei of the superheavy element 114 in reactions induced by 48Ca
The stability of heavy nuclides, which tend to decay by α-emission and spontaneous fission, is determined by the structural properties of nuclear matter. Nuclear binding energies and lifetimes
Liquid–liquid phase transition in supercooled silicon
Detailed and unambiguous simulation evidence is provided that the transition in supercooled liquid silicon, in the Stillinger–Weber potential18, is thermodynamically of first order and indeed occurs between two liquid states, as originally predicted by Aptekar10.