Error correction while maintaining bosonic nature of the system

The quantum information device of any preceding claim, wherein at least one of the plurality of quantum mechanical oscillators comprises a trapped ion oscillator.

The quantum information device of any preceding claim, wherein the at least one measurement device comprises at least one homodyne detector.

The quantum information device of any preceding claim, further comprising a stripline resonator coupled to the first data quantum mechanical oscillator.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is further configured to initialize at least one GKP state in the first ancilla quantum mechanical oscillator.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is configured to entangle and/or disentangle the information stored in the first data quantum mechanical oscillator and the information stored in the first ancilla quantum mechanical oscillator by applying one or more drive waveforms configured to apply a SUM gate or an inverse SUM gate.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is configured to entangle and/or disentangle the information stored in the first data quantum mechanical oscillator and the information stored in the first ancilla quantum mechanical oscillator by applying one or more drive waveforms configured to apply a squeezing operation or an inverse squeezing operation.

The quantum information device of any preceding claim, wherein the plurality of quantum mechanical oscillators further comprises a second ancilla quantum mechanical oscillator, the second ancilla quantum mechanical oscillator configured to store information representing a second ancilla state, wherein the second ancilla state is initialized as a second GKP state.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is further configured to entangle and/or disentangle the information stored in the first data quantum mechanical oscillator and the information stored in the second ancilla quantum mechanical oscillator.

The quantum information device of any preceding claim, wherein the plurality of quantum mechanical oscillators further comprises a second data quantum mechanical oscillator coupled to the second ancilla quantum mechanical oscillator, the second data quantum mechanical oscillator configured to store information representing a second data state.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is further configured to entangle and/or disentangle the information stored in the second data quantum mechanical oscillator and the information stored in the second ancilla quantum mechanical oscillator.

The method of any preceding claim, wherein entangling information stored in the first data quantum mechanical oscillator with information stored in the first ancilla quantum mechanical oscillator comprises using a SUM gate.

The method of any preceding claim, wherein disentangling the information stored in the first data quantum mechanical oscillator and the information stored in the first ancilla quantum mechanical oscillator comprises using an inverse SUM gate.

The method of any preceding claim, wherein entangling information stored in the first data quantum mechanical oscillator with information stored in the first ancilla quantum mechanical oscillator comprises using a squeezing operation.

The method of any preceding claim, wherein disentangling the information stored in the first data quantum mechanical oscillator and the information stored in the first ancilla quantum mechanical oscillator comprises using an inverse squeezing operation.

The method of any preceding claim, wherein using the measured position and momentum quadrature operators to correct for an error in the information stored in the first data quantum mechanical oscillator comprises:

• applying one or more counter displacement operations to the information stored in the first data quantum mechanical oscillator.

The method of any preceding claim, wherein measuring position and momentum quadrature operators of the first ancilla quantum mechanical oscillator comprises performing one or more homodyne detection measurements.

The quantum information device of any preceding claim, wherein at least one of the plurality of quantum mechanical oscillators comprises a trapped ion oscillator.

The quantum information device of any preceding claim, wherein the at least one measurement device comprises at least one homodyne detector.

The quantum information device of any preceding claim, further comprising a stripline resonator coupled to a first one of the one or more data quantum mechanical oscillators.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is further configured to initialize at least one GKP state in the plurality of quantum mechanical oscillators.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is configured to entangle and/or disentangle the information stored in the one or more data quantum mechanical oscillators and the information stored in the plurality of ancilla quantum mechanical oscillators by applying one or more drive waveforms configured to apply a SUM gate or an inverse SUM gate.

The quantum information device of any preceding claim, wherein the at least one electromagnetic radiation source is configured to entangle and/or disentangle the information stored in the one or more data quantum mechanical oscillators and the information stored in the plurality of ancilla quantum mechanical oscillators by applying one or more drive waveforms configured to apply a squeezing operation or an inverse squeezing operation.