Abstract: A device for modulating an amplitude of a light beam, comprising a coherent light source configured to generate a phase-modulated beam having a plurality of frequency components; and a dispersive optical element. The dispersive optical element has a group delay dispersion and is configured to receive the phase-modulated beam, to introduce an optical phase shift to each of the plurality of the frequency components, so that the values of the optical phase shift vary non-linearly with frequency according to the group delay dispersion, and to recombine the plurality of frequency components, thereby generating an amplitude-modulated beam.

Abstract: Dynamically reconfigurable architectures for quantum information and simulation are provided. A plurality of neutral atoms is provided. Each neutral atom is disposed in a corresponding optical trap. Each of the plurality of neutral atoms is prepared in a mF=0 clock state. A pair of neutral atoms of the plurality of neutral atoms is entangled by directing a laser pulse thereto. The laser pulse is configured to transition the pair of neutral atoms through a Rydberg state. The optical trap corresponding to at least one neutral atom of the pair is adiabatically moved, thereby moving one atom of the pair relative to the other atom of the pair without destroying entanglement of the pair.

Abstract: A device includes a grouping of N qubits, where N is equal to two or more, and a coherent light source configured to, given selected values for a set of parameters of at least a first and a second laser pulse, the parameters selected from a relative phase shift, a laser frequency, a laser intensity, and a pulse duration: apply at least the first and second laser pulses to all qubits within the grouping of N qubits, thereby coupling a non-interacting quantum state |1 to an interacting excited state |r, such that each qubit that begins in quantum state |1 returns to the state |1 upon completion of the at least first and second laser pulses, and such that qubits in the grouping are mutually blockaded.

Abstract: Topological qubits are provided in a quantum spin liquid. In various embodiments, a device is provided comprising a two-dimensional array of particles, each particle disposed at a vertex of a ruby lattice having a parameter ? greater than 1 2 ; each particle having a first state and an excited state; each particle that belongs to at least three unit cells of the ruby lattice having a blockade radius, when in the excited state, sufficient to blockade each of at least six nearest neighboring particles in the ruby lattice from transitioning from its first state to its excited state, and wherein the array has at least one outer edge configured to be in a first boundary condition.