US 2014/0192390 A1 · Morphable Identity, Networkable Photonic Quantum Logic Gate System & Method

Abstract

Systems and methods of performing logical operations with photonic quantum logic gates. The logic gates utilize photon states, usually orthogonal linearly polarized states, to selectively enact self-interference operations whose outputs can be altered by inducing phase shifts in one or more portions of the section of the logic gate where the photon states undergo self-interference. The polarization direction switchings are differentially enacted and/or not enacted, in groupings of switches, to perform various logic operations. Additionally, networked logic gates with interrelated self-interference section phase shifts and output states are described that provide additional capabilities.

Claims20

Dependent claims

A photonic quantum logic gate with modifiable logic operation characteristics, comprising:

a first quantum differentiator that separates first and second orthogonal states of a first photon and inputs each for individual processing by first and second quantum modifiers, respectively;
said modifiers' processing involving a self-interference section operating in either a first or a second mode which output, respectively, either the same or the alternative of the input state;
at least a first path of at least one state of at least a second photon arranged to alter the mode of self-interference undergone by at least one of the first photon's states in at least one of the modifiers;
and
a quantum integrator that assembles the first and second modifiers' outputs and channels them into a single unified output.

2 more elements

A method of operating a photonic quantum logic gate with modifiable characteristics, comprising the steps of:

differentiating first and second orthogonal states of a first photon and separately inputting each for individual processing by first and second quantum modifiers, respectively;
said processing involving a self-interference procedure operating in either a first or a second mode which output, respectively, either the same or the alternative of the input state;
arranging for at least a first path of at least one state of at least a second photon to alter the mode of self-interference undergone by at least one of the first photon's states in at least one of the modifiers;
and
integrating the first and second modifiers' outputs and channeling them into a single unified output.

2 more elements

A network of photonic quantum logic gates that have modifiable logic operation characteristics, comprising:

first and second photonic logic gates operating on entering first and second photons, respectively, said gates each comprising,
a first quantum differentiator that separates first and second orthogonal states of the entered photon and inputs said first and second states for individual processing by first and second quantum modifiers, respectively;
said modifiers' processing involving a self-interference section operating in either a first or a second mode which output, respectively, either the same or the alternative of the input state;
said self-interference mode undergone by at least one of the states of the entered photon in at least one of the first gate's modifiers being altered by at least one state of a different photon;
and
a quantum integrator that assembles the first and second modifiers' outputs and channels them into a single output;
wherein at least one output state of the self-interference section of at least one of the first logic gate's quantum modifiers is arranged to function as said at least one state of a different photon that alters the self-interference mode undergone by at least one of the second photon's states in at least one of the second logic gate's modifiers.

4 more elements

Dependencies are inferred from the claim text.

Morphable Identity, Networkable Photonic Quantum Logic Gate System & Method

Life of this patent

Morphable Identity, Networkable Photonic Quantum Logic Gate System & Method

Life of this patent

Abstract

Claims20