Publications (33)
Spin Resonance Spectroscopy with an Electron Microscope
Philipp Haslinger, Stefan Nimmrichter, Dennis Rätzel
Coherent spin resonance methods, such as nuclear magnetic resonance and electron spin resonance spectroscopy, have led to spectrally highly sensitive, non-invasive quantum imaging…
Matter-wave interferometry with composite quantum objects
Markus Arndt, Nadine Dörre, Sandra Eibenberger +5
We discuss modern developments in quantum optics with organic molecules, clusters and nanoparticles -- in particular recent realizations of near-field matter-wave interferometry. A…
Testing spontaneous localization theories with matter-wave interferometry
Stefan Nimmrichter, Klaus Hornberger, Philipp Haslinger +1
We propose to test the theory of continuous spontaneous localization (CSL) in an all-optical time-domain Talbot-Lau interferometer for clusters with masses exceeding 1000000 amu. B…
Observation of Light-Induced Dipole-Dipole Forces in Ultracold Atomic Gases
Mira Maiwöger, Matthias Sonnleitner, Tiantian Zhang +7
We investigate an attractive force caused by light induced dipole-dipole interactions in freely expanding ultracold 87Rb atoms. This collective, light-triggered effect results in a…
The Sound of Entanglement
Enar de Dios RodrÃguez, Philipp Haslinger, Johannes Kofler +5
The advent of quantum physics has revolutionized our understanding of the universe, replacing the deterministic framework of classical physics with a paradigm dominated by intrinsi…
Exploring single-photon recoil on free electrons
Alexander Preimesberger, Dominik Hornof, Theo Dorfner +4
Recent advancements in time-resolved electron and photon detection enable novel correlative measurements of electrons and their associated cathodoluminescence (CL) photons within a…
Quantum Metrology of Spin Sensing with Free Space Electrons
Santiago Beltrán-Romero, Michael Gaida, Philipp Haslinger +2
Recent advances in transmission electron microscopy (TEM) have opened the path toward spin resonance spectroscopy with single-spin sensitivity. To assess this potential, we investi…
Coupling free electrons to a trapped-ion quantum computer
Elias Pescoller, Santiago Beltrán-Romero, Sebastian Egginger +10
Freely propagating electrons may serve as quantum probes that can become coherently correlated with other quantum systems, offering access to advanced metrological resources. We pr…
Colloquium: Quantum interference of clusters and molecules
Klaus Hornberger, Stefan Gerlich, Philipp Haslinger +2
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 effe…
Simulating Microwave-Controlled Spin Imaging with Free-Space Electrons
Santiago Beltrán-Romero, Stefan Löffler, Dennis Rätzel +1
Coherent spin resonance techniques, such as nuclear and electron spin resonance spectroscopy, have revolutionized non-invasive imaging by providing spectrally resolved information…
Concept of an ionizing time-domain matter-wave interferometer
Stefan Nimmrichter, Philipp Haslinger, Klaus Hornberger +1
We discuss the concept of an all-optical and ionizing matter-wave interferometer in the time domain. The proposed setup aims at testing the wave nature of highly massive clusters a…
Electron-Enabled Nanoparticle Diffraction
Stefan Nimmrichter, Dennis Rätzel, Isobel C. Bicket +2
We propose a scheme for generating high-mass quantum superposition states of an optically pre-cooled, levitated nanoparticle through electron diffraction at its sub-nanometer cryst…
Photofragmentation beam splitters for matter-wave interferometry
Nadine Dörre, Jonas Rodewald, Philipp Geyer +3
Extending the range of quantum interferometry to a wider class of composite nanoparticles requires new tools to diffract matter waves. Recently, pulsed photoionization light gratin…
Testing collapse models with Bose-Einstein-Condensate interferometry
Björn Schrinski, Philipp Haslinger, Jörg Schmiedmayer +2
The model of continuous spontaneous localization (CSL) is the most prominent consistent modification of quantum mechanics predicting an objective quantum-to-classical transition. H…
Next Generation of Phonon Tests of Lorentz Invariance using Quartz BAW Resonators
Maxim Goryachev, Zeyu Kuang, Eugene N. Ivanov +3
We demonstrate technological improvements in phonon sector tests of Lorentz Invariance that implement quartz Bulk Acoustic Wave oscillators. In this experiment, room temperature os…
Acoustic tests of Lorentz symmetry using quartz oscillators
Anthony Lo, Philipp Haslinger, Eli Mizrachi +5
We propose and demonstrate a test of Lorentz symmetry based on new, compact, and reliable quartz oscillator technology. Violations of Lorentz invariance in the matter and photon-se…
A universal matter-wave interferometer with optical ionization gratings in the time domain
Philipp Haslinger, Nadine Dörre, Philipp Geyer +3
Matter-wave interferometry with atoms and molecules has attracted a rapidly growing interest over the past two decades, both in demonstrations of fundamental quantum phenomena and…
A Snapshot of Relativistic Motion: Visualizing the Terrell Effect
Dominik Hornof, Victoria Helm, Enar de Dios Rodriguez +3
We present an experimental visualization of the Terrell effect, an optical phenomenon predicted in 1959 by Roger Penrose and James Terrell, which reveals that the Lorentz contracti…
Discrimination of coherent and incoherent cathodoluminescence using temporal photon correlations
Michael Scheucher, Thomas Schachinger, Thomas Spielauer +2
We present a method to separate coherent and incoherent contributions of cathodoluminescence (CL) by using a time-resolved coincidence detection scheme. For a proof-of-concept expe…
A Quantum Klystron -- Controlling Quantum Systems with Modulated Electron Beams
Dennis Rätzel, Daniel Hartley, Osip Schwartz +1
Coherent control of quantum transitions -- indispensable in quantum technology -- generally relies on the interaction of quantum systems with electromagnetic radiation. Here, we th…
Sensing Spin Systems with a Transmission Electron Microscope
AntonÃn JaroÅ¡, Michael S. Seifner, Johann Toyfl +3
We present a novel method that combines spin resonance spectroscopy with transmission electron microscopy (TEM), enabling localized in-situ detection of microwave (MW)-driven spin…
Attractive force on atoms due to blackbody radiation
Philipp Haslinger, Matt Jaffe, Victoria Xu +5
Objects at finite temperature emit thermal radiation with an outward energy-momentum flow, which exerts an outward radiation pressure. At room temperature, a cesium atom scatters o…
Influence of the Coriolis force in atom interferometry
Shau-Yu Lan, Pei-Chen Kuan, Brian Estey +2
In a light-pulse atom interferometer, we use a tip-tilt mirror to remove the influence of the Coriolis force from Earth's rotation and to characterize configuration space wave pack…
Experimental Verification of Electron-Photon Entanglement
Alexander Preimesberger, Sergei Bogdanov, Isobel C. Bicket +2
Entanglement, a key resource of emerging quantum technologies, describes correlations between particles that defy classical physics. It has been studied extensively on various plat…
Electron Spin Resonance Spectroscopy in a Transmission Electron Microscope
AntonÃn JaroÅ¡, Johann Toyfl, Andrea PupiÄ +4
Coherent spin resonance methods such as nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy have led to spectrally highly sensitive, non-invasive quantu…
Splitting the Raman beamsplitter
Matt Jaffe, Victoria Xu, Philipp Haslinger +2
We present an atom interferometry technique in which the beamsplitter is split into two separate operations. A microwave pulse first creates a spin-state superposition, before opti…
Atom-interferometry constraints on dark energy
Paul Hamilton, Matt Jaffe, Philipp Haslinger +3
If dark energy --- which drives the accelerated expansion of the universe --- consists of a light scalar field, it might be detectable as a "fifth force" between normal-matter obje…
State-Agnostic Approach to Certifying Electron-Photon Entanglement in Electron Microscopy
Phila Rembold, Santiago Beltrán-Romero, Alexander Preimesberger +6
Transmission electron microscopes (TEMs) enable atomic-scale imaging and characterisation, driving advances across fields from materials science to biology. Quantum correlations, s…
Chameleon Dark Energy and Atom Interferometry
Benjamin Elder, Justin Khoury, Philipp Haslinger +3
Atom interferometry experiments are searching for evidence of chameleon scalar fields with ever-increasing precision. As experiments become more precise, so too must theoretical pr…
Ghost Imaging with Free Electron-Photon Pairs
Sergei Bogdanov, Alexander Preimesberger, Harsh Mishra +11
Coincidence imaging, also known as ghost imaging, is a technique that exploits correlations between two particles to reconstruct information about a specimen. The particle that rel…
Testing sub-gravitational forces on atoms from a miniature, in-vacuum source mass
Matt Jaffe, Philipp Haslinger, Victoria Xu +5
Gravity is the weakest fundamental interaction and the only one that has not been measured at the particle level. Traditional experimental methods, from astronomical observations t…
Continuous 40 GW/cm laser intensity in a near-concentric optical cavity
Osip Schwartz, Jeremy J. Axelrod, Philipp Haslinger +3
Manipulating free-space electron wave functions with laser fields can bring about new electron-optical elements for transmission electron microscopy. In particular, a Zernike phase…
Coherent Driving of a Quantum System with Modulated Free-Space Electrons
Matthias Kolb, Thomas Spielauer, Thomas Weigner +3
Control of quantum systems typically relies on the interaction with electromagnetic radiation. In this study, we experimentally show that the electromagnetic near-field of a spatia…