Abstract: This invention relates generally to a method and system for hybrid classical-quantum communication. The method comprises transmitting a single photon having a particular quantum state over a communication medium using a quantum mode set; and transmitting a classical light beam over the same communication medium using a classical mode set, wherein the classical and quantum mode sets comprise non-separable modes in common. The non-separable modes in common may be two degrees of freedom of a single photon or classical light and may thus be spatial modes in one or more indexes, and polarisation. The invention relates also to a system to implement the method accordingly.

Abstract: This invention relates generally to a method and system for hybrid classical-quantum communication. The method comprises transmitting a single photon having a particular quantum state over a communication medium using a quantum mode set; and transmitting a classical light beam over the same communication medium using a classical mode set, wherein the classical and quantum mode sets comprise non-separable modes in common. The non-separable modes in common may be two degrees of freedom of a single photon or classical light and may thus be spatial modes in one or more indexes, and polarisation. The invention relates also to a system to implement the method accordingly.

Abstract: One or more aspects comprise a computer system comprising one or more servers that: (a) provide a financial personality assessment questionnaire to a user; and (b) receive data describing said user's responses to one or more questions in said questionnaire; and one or more processors in communication with said one or more servers that: (a) based on said data describing said user's responses, assess said user's investment-related attitudes across a plurality of scales and produce a multi-dimensional financial personality identifier for said user; and (b) construct a user risk profile for said user derived from said multi-dimensional financial personality identifier.

Abstract: One or more aspects comprise a computer system comprising one or more servers that: (a) provide a financial personality assessment questionnaire to a user; and (b) receive data describing said user's responses to one or more questions in said questionnaire; and one or more processors in communication with said one or more servers that: (a) based on said data describing said user's responses, assess said user's investment-related attitudes across a plurality of scales and produce a multi-dimensional financial personality identifier for said user; and (b) construct a user risk profile for said user derived from said multi-dimensional financial personality identifier.

Abstract: A computer system for managing, creating, and support of a novel investment instrument, known as a Security Receipt. This receipt provides translation of ownership of plural underlying securities to the holder of the receipt in a seamless and efficient way. The system permits enhanced security creation, and orderly support to facilitate liquidity and market trading of the Security Receipt.