Differential quantum noise source

A method of generating a quantum random number, the method comprising:

• providing, by a first noise source, a first noise to an amplifier;
• providing, by a second noise source, a second noise to the amplifier;
• combining, by the amplifier, the first noise and the second noise to generate an amplified analog signal for output;
• converting, by an analog-to-digital converter (ADC) device, the amplified analog signal into a quantum random number stream;
• and
• outputting, by the ADC device, the quantum random number stream.

A system for generating a quantum random number stream, the system comprising:

• a first quantum noise source;
• a first bias device, configured to bias the first quantum noise source such that the first quantum noise source generates a first noise;
• a second quantum noise source;
• a second bias device, configured to bias the second quantum noise source such that the second quantum noise source generates a second noise;
• a first differential buffer further comprising a first input channel configured to receive the first noise from the first quantum noise source a second input channel configured to receive a first corrective feedback signal, wherein the first differential buffer combines the first noise and the first corrective feedback signal to generate a first corrected noise;
• a second differential buffer further comprising a third input channel configured to receive the second noise from the second quantum noise source and a fourth input channel configured to receive a second corrective feedback signal wherein the second differential buffer combines the second noise and the second corrective feedback signal to generate a second corrected noise;
• a differential amplifier that uses a difference between the first corrected noise and the second corrected noise to generate an amplified analog signal for output;
• and
• an analog-to-digital converter (ADC) device wherein the ADC device is configured to convert the amplified analog signal to a quantum random number stream and output the quantum random number stream.