Molecules are created from a Bose-Einstein condensate of atomic 87Rb using a Feshbach resonance. A Stern-Gerlach field is applied, in order to spatially separate the molecules from the remaining atoms. For detection, the molecules are converted back into atoms, again using the Feshbach resonance. The measured position of the molecules yields their magnetic moment. This quantity strongly depends...

The resonance frequencies and oscillation phases of three acoustically coupled bubbles are examined to show that avoided crossings can appear in a multibubble system. Via a simple coupled oscillator model, we show that if at least three bubbles exist, it is possible for their resonance frequencies as functions of the separation distances between the bubbles to experience an avoided crossing. Fu...

Periodic driving of a quantum (or classical) many-body system can alter the systems properties significantly and therefore has emerged as promising way to engineer exotic phases, such topological insulators discrete time crystals. A major limitation in setups, is that generally interacting, driven will heat up over lose desired properties. Understanding relevant scales thus an important topic f...

Understanding the intra-cavity field dynamics in passive microresonator systems has already been intriguing. It becomes fascinating when system is complex, such as a concentric dual microring resonator that exhibit avoided mode crossing (AMC). In this work, we present systematic study of oscillatory near AMC silicon nitride with help coupled Lugiato-Lefever equation (LLE). We identify two regio...

We have previously shown how femtosecond angle- and energy-resolved photoelectron spectroscopy can be used to monitor quantum wavepacket bifurcation at an avoided crossing or conical intersection and also how a symmetry-allowed conical intersection can be effectively morphed into an avoided crossing by photo-induced symmetry breaking. The latter result suggests that varying the parameters of a ...

We consider ballistic cylindrical nanostructures with an applied longitudinal static magnetic field. Without Coulomb interaction, the field induces points of degeneracy where the ground state of the system is exchanged due to Aharonov-Bohm effect. The Coulomb potential introduces interaction between the degenerate electronic configurations. As a consequence, the crossing points of the free elec...