Shortcuts to adiabaticity (STA) are fast routes to the final results of slow, adiabatic changes
of the controlling parameters of a system. The shortcuts are designed by a set of analytical …

Scrambling is the process by which information stored in local degrees of freedom spreads
over the many-body degrees of freedom of a quantum system, becoming inaccessible to …

The exponential growth of the out-of-time-ordered correlator (OTOC) has been proposed as
a quantum signature of classical chaos. The growth rate is expected to coincide with the …

We use a self-assembled two-dimensional Coulomb crystal of∼ 70 ions in the presence of
an external transverse field to engineer a simulator of the Dicke Hamiltonian, an iconic …

In a classically chaotic system that is ergodic, any trajectory will be arbitrarily close to any
point of the available phase space after a long time, filling it uniformly. Using Born's rules to …

Shortcuts to Adiabaticity (STA) constitute driving schemes that provide an alternative to
adiabatic protocols to control and guide the dynamics of classical and quantum systems …

Quantum systems whose classical counterparts are chaotic typically have highly correlated
eigenvalues and level statistics that coincide with those from ensembles of full random …

When a qubit or spin interacts with others under a many-body Hamiltonian, the information it
contains progressively scrambles. Here, nuclear spins of an adamantane crystal are used as …

Frustration occurs when a system cannot find a lowest-energy configuration due to
conflicting constraints. We show that a frustrated superradiant phase transition occurs when …

We present a detailed analysis of the connection between chaos and the onset of
thermalization in the spin-boson Dicke model. This system has a well-defined classical limit …