Matter-wave physics with nanoparticles and biomolecules

  title={Matter-wave physics with nanoparticles and biomolecules},
  author={Christian Brand and Sandra Eibenberger and Uğur Sezer and Markus Arndt},
  journal={Current Trends in Atomic Physics},
The chapter discusses advances in matter-wave optics with complex molecules, generalizing Young’s double slit to high masses. The quantum wave-particle duality is visualized by monitoring the arrival patterns of molecules diffracted at nanomechanical masks. Each molecule displays particle behavior when it is localized on the detector; however, the overall interference pattern requires their delocalization in free flight. Internal particle properties influence the de Broglie waves in the… 
Coherent diffraction of hydrogen through the 246 pm lattice of graphene
We study the diffraction of neutral hydrogen atoms through suspended single-layer graphene using molecular dynamics simulations based on density functional theory. Although the atoms have to overcome
Reconsidering the Relation Between “Matter Wave Interference” and “Wave–Particle Duality”
Interference of more and more massive objects provides a spectacular confirmation of quantum theory. It is usually regarded as support for “wave–particle duality” and in an extension of this duality
Wave optics of quantum gravity for massive particles
Effects of the quantum gravity under Minkowski space-time background are considered. It is shown that despite the absence of the complete theory of quantum gravity, some concrete predictions could be
Massive non-classical states and the observation of quantum gravity: a user's manual
Recent advances in cooling, control, and measurement of mechanical systems in the quantum regime have opened the possibility of the first direct observation of quantum gravity, at scales achievable
Gravitationally mediated entanglement: Newtonian field versus gravitons
We argue that if the Newtonian gravitational field of a body can mediate entanglement with another body, then it should also be possible for the body producing the Newtonian field to entangle directly
Tabletop experiments for quantum gravity: a user’s manual
Recent advances in cooling, control, and measurement of mechanical systems in the quantum regime have opened the possibility of the first direct observation of quantum gravity, at scales achievable
Reason for Higher Rate of Gas Flow per Unit Cross-Sectional Area of Smaller Pore Aperture
Objectives: The objectives of this research are to 1) Formulate equation that shows the effect of pore aperture (or confinement) on not just the mass movement of molecules but the movement of


An atomically thin matter-wave beamsplitter.
It is shown that quantum coherence prevails, even in the limit of atomically thin gratings, which can be seen as a nanomechanical answer to the question debated by Bohr and Einstein of whether a softly suspended double slit would destroy quantum interference.
Matter-wave interferometry with composite quantum objects
We discuss modern developments in quantum optics with organic molecules, clusters and nanoparticles -- in particular recent realizations of near-field matter-wave interferometry. A unified
Real-time single-molecule imaging of quantum interference.
This work shows how a combination of nanofabrication and nano-imaging allows us to record the full two-dimensional build-up of quantum interference patterns in real time for phthalocyanine molecules and for derivatives of phthaloprotein molecules, which have masses of 514 AMU and 1,298 AMu respectively.
A universal matter-wave interferometer with optical ionization gratings in the time-domain
The experimental realization of a universal near-field interferometer built from three short-pulse single-photon ionization gratings, which is sensitive to fringe shifts as small as a few nanometers and yet robust against velocity-dependent phase shifts, since the gratings exist only for nanoseconds and form an interferometers in the time-domain.
Wave–particle duality of C60 molecules
The observation of de Broglie wave interference of C60 molecules by diffraction at a material absorption grating is reported, which is the most massive and complex object in which wave behaviour has been observed.
Colloquium: Quantum interference of clusters and molecules
We review recent progress and future prospects of matter wave interferometry with complex organic molecules and inorganic clusters. Three variants of a near-field interference effect, based on
Coherence in the presence of absorption and heating in a molecule interferometer
Evidence that center-of-mass coherence can be maintained even when the internal energy and entropy of the interfering particle are substantially increased by absorption of photons from a standing light wave is provided.
Influence of conformational molecular dynamics on matter wave interferometry
We investigate the influence of thermally activated internal molecular dynamics on the phase shifts of matter waves inside a molecule interferometer. While de Broglie physics generally describes only
Matter-wave interference of particles selected from a molecular library with masses exceeding 10,000 amu.
It is demonstrated how synthetic chemistry allows us to prepare libraries of fluorous porphyrins which can be tailored to exhibit high mass, good thermal stability and relatively low polarizability, which allows for successful superposition experiments with selected species from these molecular libraries in a quantum interferometer, which utilizes the diffraction of matter-waves at an optical phase grating.
Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
We describe the state of the art in preparing, manipulating and detecting coherent molecular matter. We focus on experimental methods for handling the quantum motion of compound systems from diatomic