Archer achieves “milestone” increase in quantum coherence times at room temperature

Archer Materials, an ASX-listed company developing CMOS-based quantum processors, has announced what it says is a “significant milestone”, increasing the quantum coherence times of its qubit material at room temperature.

Archer said it had recently “engineered the quantum properties of” the material to achieve electron spin coherence times greater than 230 nanoseconds while maintaining its intrinsic metallic-like character, made possible through using a different precursor and employing post-synthesis treatments.

Coherence represents how long a qubit’s “quantumness” can be held for use in calculations.

Archer aims to develop quantum processor chips able to operate without expensive refrigeration equipment and integrate with regular electronic devices such as phones and computers.

The coherence time for the qubits to be used in Archer’s 12CQ chips “potentially broadens the application space for Archer’s qubit material” in a more normal operating environment, the company said.

“Archer has now demonstrated a significant advance in its qubit materials’ quantum coherence times observed at room temperature. This extended time window for processing quantum  information was only previously possible by cooling the qubit material using liquid nitrogen, to  reach nearly -173°C,” explained Dr Mohammad Choucair in a statement on Thursday.

“Archer is confident that this breakthrough in quantum materials positions it as a leading player in the quantum computing industry, paving the way for the potential development of  commercially viable quantum technology solutions.” 

Picture: credit Archer

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