Max Schemmer
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View article: Emergence of unidirectionality and phase separation in optically dense emitter ensembles
Emergence of unidirectionality and phase separation in optically dense emitter ensembles Open
The transmission of light through an ensemble of two-level emitters in a one-dimensional geometry is commonly described by one of two emblematic models of quantum electrodynamics (QED): the driven-dissipative Dicke model or the Maxwell-Blo…
View article: Photon transport in a gas of two-level atoms: unveiling quantum light creation
Photon transport in a gas of two-level atoms: unveiling quantum light creation Open
We present a theoretical analysis of nearly monochromatic light propagation through a gas of two-level atoms using the Heisenberg–Langevin equation method. Our focus is on the evolution of the photon annihilation operator and its impact on…
View article: Complementarity in human-AI collaboration: concept, sources, and evidence
Complementarity in human-AI collaboration: concept, sources, and evidence Open
Artificial intelligence (AI) has the potential to significantly enhance human performance across various domains. Ideally, collaboration between humans and AI should result in complementary team performance (CTP)—a level of performance tha…
View article: Photon Transport in a Gas of Two-Level Atoms: Unveiling Quantum Light Creation
Photon Transport in a Gas of Two-Level Atoms: Unveiling Quantum Light Creation Open
We present a theoretical analysis of nearly monochromatic light propagation through a gas of two-level atoms using the Heisenberg-Langevin equation method. Our focus is on the evolution of the photon annihilation operator and its impact on…
View article: Emergence of unidirectionality and phase separation in optically dense emitter ensembles
Emergence of unidirectionality and phase separation in optically dense emitter ensembles Open
The transmission of light through an ensemble of two-level emitters in a one-dimensional geometry is commonly described by one of two emblematic models of quantum electrodynamics (QED): the driven-dissipative Dicke model or the Maxwell-Blo…
View article: Simple analytical model describing the collective nonlinear response of an ensemble of two-level emitters weakly coupled to a waveguide
Simple analytical model describing the collective nonlinear response of an ensemble of two-level emitters weakly coupled to a waveguide Open
We model and investigate the collective nonlinear optical response of an ensemble of two-level emitters that are weakly coupled to a single-mode waveguide. Our approach generalizes the insight that photon-photon correlations in the light s…
View article: Topological photon pumping in quantum optical systems
Topological photon pumping in quantum optical systems Open
We establish the concept of topological pumping in one-dimensional systems with long-range couplings and apply it to the transport of a photon in quantum optical systems. In our theoretical investigation, we introduce an extended version o…
View article: Magic-wavelength nanofiber-based two-color dipole trap with sub-$λ/2$ spacing
Magic-wavelength nanofiber-based two-color dipole trap with sub-$λ/2$ spacing Open
We report on the realization and characterization of a novel magic-wavelength nanofiber-based two-color optical dipole trap for cesium that allows us to generate two diametral periodic one-dimensional arrays of trapping sites with a spacin…
View article: Ultracold <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:mrow><mml:mi>Li</mml:mi><mml:mi>Cr</mml:mi></mml:mrow></mml:math>: A New Pathway to Quantum Gases of Paramagnetic Polar Molecules
Ultracold : A New Pathway to Quantum Gases of Paramagnetic Polar Molecules Open
Quantum gases of doubly polar molecules represent appealing frameworks for a variety of cross-disciplinary applications, encompassing quantum simulation and computation, controlled quantum chemistry, and precision measurements. Through a j…
View article: Topological photon pumping in quantum optical systems
Topological photon pumping in quantum optical systems Open
We establish the concept of topological pumping in one-dimensional systems with long-range couplings and apply it to the transport of a photon in quantum optical systems. In our theoretical investigation, we introduce an extended version o…
View article: Complementarity in Human-AI Collaboration: Concept, Sources, and Evidence
Complementarity in Human-AI Collaboration: Concept, Sources, and Evidence Open
Artificial intelligence (AI) has the potential to significantly enhance human performance across various domains. Ideally, collaboration between humans and AI should result in complementary team performance (CTP) -- a level of performance …
View article: Ultracold LiCr: a new pathway to quantum gases of paramagnetic polar molecules
Ultracold LiCr: a new pathway to quantum gases of paramagnetic polar molecules Open
Quantum gases of doubly-polar molecules represent appealing frameworks for a variety of cross-disciplinary applications, encompassing quantum simulation and computation, controlled quantum chemistry and precision measurements. Through a jo…
View article: Towards Effective Human-AI Decision-Making: The Role of Human Learning in Appropriate Reliance on AI Advice
Towards Effective Human-AI Decision-Making: The Role of Human Learning in Appropriate Reliance on AI Advice Open
The true potential of human-AI collaboration lies in exploiting the complementary capabilities of humans and AI to achieve a joint performance superior to that of the individual AI or human, i.e., to achieve complementary team performance …
View article: On the simultaneous scattering of two photons by a single two-level atom
On the simultaneous scattering of two photons by a single two-level atom Open
The interaction of light with a single two-level emitter is the most fundamental process in quantum optics, and is key to many quantum applications. As a distinctive feature, two photons are never detected simultaneously in the light scatt…
View article: Higher-order mean-field theory of chiral waveguide QED
Higher-order mean-field theory of chiral waveguide QED Open
Waveguide QED with cold atoms provides a potent platform for the study of non-equilibrium, many-body, and open-system quantum dynamics. Even with weak coupling and strong photon loss, the collective enhancement of light-atom interactions l…
View article: Conceptualizing A Multi-Sided Platform For Cloud Computing Resource Trading
Conceptualizing A Multi-Sided Platform For Cloud Computing Resource Trading Open
Cost-effective and responsible use of cloud computing resources (CCR) is on the business agenda of many companies. Despite this strategic goal, two geopolitical strategy decisions mainly influence the continuous existence of overcapacity: …
View article: Towards Meaningful Anomaly Detection: The Effect of Counterfactual Explanations on the Investigation of Anomalies in Multivariate Time Series
Towards Meaningful Anomaly Detection: The Effect of Counterfactual Explanations on the Investigation of Anomalies in Multivariate Time Series Open
Detecting rare events is essential in various fields, e.g., in cyber security or maintenance. Often, human experts are supported by anomaly detection systems as continuously monitoring the data is an error-prone and tedious task. However, …
View article: Appropriate Reliance on AI Advice: Conceptualization and the Effect of Explanations
Appropriate Reliance on AI Advice: Conceptualization and the Effect of Explanations Open
AI advice is becoming increasingly popular, e.g., in investment and medical treatment decisions. As this advice is typically imperfect, decision-makers have to exert discretion as to whether actually follow that advice: they have to "appro…
View article: Tailoring photon statistics with an atom-based two-photon interferometer
Tailoring photon statistics with an atom-based two-photon interferometer Open
Controlling the photon statistics of light is paramount for quantum science and technologies. Recently, we demonstrated that transmitting resonant laser light past an ensemble of two-level emitters can result in a stream of single photons …
View article: Report on 2207.10439v2
Report on 2207.10439v2 Open
Waveguide QED with cold atoms provides a potent platform for the study of non-equilibrium, many-body, and open-system quantum dynamics.Even with weak coupling and strong photon loss, the collective enhancement of light-atom interactions le…
View article: Report on 2207.10439v1
Report on 2207.10439v1 Open
Waveguide QED with cold atoms provides a potent platform for the study of non-equi-librium, many-body, and open-system quantum dynamics.Even with weak coupling and strong photon loss, the collective enhancement of light-atom interactions l…
View article: Will a single two-level atom simultaneously scatter two photons?
Will a single two-level atom simultaneously scatter two photons? Open
The interaction of light with a single two-level emitter is the most fundamental process in quantum optics, and is key to many quantum applications. As a distinctive feature, two photons are never detected simultaneously in the light scatt…
View article: Higher-order mean-field theory of chiral waveguide QED
Higher-order mean-field theory of chiral waveguide QED Open
Waveguide QED with cold atoms provides a potent platform for the study of non-equilibrium, many-body, and open-system quantum dynamics. Even with weak coupling and strong photon loss, the collective enhancement of light-atom interactions l…
View article: On the Effect of Information Asymmetry in Human-AI Teams
On the Effect of Information Asymmetry in Human-AI Teams Open
Over the last years, the rising capabilities of artificial intelligence (AI) have improved human decision-making in many application areas. Teaming between AI and humans may even lead to complementary team performance (CTP), i.e., a level …
View article: Factors that influence the adoption of human-AI collaboration in clinical decision-making
Factors that influence the adoption of human-AI collaboration in clinical decision-making Open
Recent developments in Artificial Intelligence (AI) have fueled the emergence of human-AI collaboration, a setting where AI is a coequal partner. Especially in clinical decision-making, it has the potential to improve treatment quality by …
View article: On the Influence of Explainable AI on Automation Bias
On the Influence of Explainable AI on Automation Bias Open
Artificial intelligence (AI) is gaining momentum, and its importance for the future of work in many areas, such as medicine and banking, is continuously rising. However, insights on the effective collaboration of humans and AI are still ra…
View article: Should I Follow AI-based Advice? Measuring Appropriate Reliance in Human-AI Decision-Making
Should I Follow AI-based Advice? Measuring Appropriate Reliance in Human-AI Decision-Making Open
Many important decisions in daily life are made with the help of advisors, e.g., decisions about medical treatments or financial investments. Whereas in the past, advice has often been received from human experts, friends, or family, advis…
View article: Unraveling Two-Photon Entanglement via the Squeezing Spectrum of Light Traveling through Nanofiber-Coupled Atoms
Unraveling Two-Photon Entanglement via the Squeezing Spectrum of Light Traveling through Nanofiber-Coupled Atoms Open
We observe that a weak guided light field transmitted through an ensemble of atoms coupled to an optical nanofiber exhibits quadrature squeezing. From the measured squeezing spectrum we gain direct access to the phase and amplitude of the …