Researchers at Princeton University have made an important step forward in the quest to build a quantum computer using silicon components, which are prized for their low cost and versatility compared to the hardware in today’s quantum computers. The team showed that a silicon-spin quantum bit (shown in the box) can communicate with another quantum bit located a significant distance away on a computer chip. The feat could enable connections between multiple quantum bits to perform complex calculations.
CREDIT
Image by Felix Borjans, Princeton University
The demonstration of two silicon quantum bits communicating across relatively long distances is a turning point for the technology.
A team at Princeton University has demonstrated that two Quantum Computing components, known as silicon “spin” qubits, can interact even when spaced relatively far apart on a computer chip.
“The ability to transmit messages across this distance on a silicon chip unlocks new capabilities for our quantum hardware,” said Jason Petta.”This should help to improve the communication of qubits on chips as well as from one chip to another”.
There is huge potential for quantum computers to tackle challenges well beyond the capabilities of our current computers. In order to realize this great potential, these computers will require tens of thousands of qubits that can communicate with each other. The difficulty is that current quantum computers contain tens of qubits made from superconducting circuits. Silicon spin qubits have several advantages over this current approach in that they retain their Quantum State longer than competing technologies and can be manufactured at a low cost.
“This is the first demonstration of entangling electron spins in silicon separated by distances much larger than the devices housing those spins,” said Thaddeus Ladd .
The demonstration is an important milestone and utilizes materials heavily used in the semiconductor industry already.
Learn more: In leap for quantum computing, silicon quantum bits establish a long-distance relationship
Go deeper with Bing News on:
Quantum computing
- Quantum computer provides insights into exotic states of matter
Twisting elusive quantum particles]Quantum processor provides insights into exotic states of matterWhile the number of qubits and the stability of quantum states are still limiting current quantum ...
- Where does EU stand in the quantum computing race with China and US?
The competition between US and China has in fact been ramping up over the years despite quantum computing being a pretty nascent technology.
- Twisting elusive quantum particles with a quantum computer
While the number of qubits and the stability of quantum states are still limiting current quantum computing devices, there are questions where these processors are already able to leverage their ...
- IBM Rolls Out A Game-Changing 127-Qubit Quantum Computer That Redefines Scale, Quality, And Speed
VIce President and Principal Analyst Quantum, AI, and Space, Paul Smith-Goodson dives into IBM Quantum’s recent quantum computing announcement about its new 127-qubit quantum Eagle processor and how ...
- Quantum advances: Three recent innovations with quantum computing
Quantum computers will soon be optimizing financial trading strategies and utilizing quantum chemistry to develop new materials.
Go deeper with Google Headlines on:
Quantum computing
Go deeper with Bing News on:
Silicon spin qubits
- Quantum computers getting connected
Research into superfast quantum computers is now well advanced, but it is not yet possible to connect the individual processors. An international research team has now shown a way to scale quantum ...
- Integration of colour centres in silicon carbide nanophotonic structures with preserved spin-optical coherence
What makes the silicon carbide platform particularly interesting ... initialise and readout the quantum states of their spin qubits. “Maximising electrical control – instead of traditional ...
- Integration of colour centres in silicon carbide nanophotonic structures with preserved spin-optical coherence
A promising route towards larger quantum computers is to orchestrate multiple task-optimised smaller systems. To dynamically connect and entangle any two systems, photonic interference emerges as a ...
- Quantum Computing Hardware Teardown
Silicon, in its natural state ... applied in order to ensure that the electron is in a particular spin state. This is how the qubit is set. From there, the transistor can be used to read the ...
- The Race To Make Better Qubits
Qubits based on silicon quantum dots are attractive in part because the ... observed that in isolated atoms, the electron spin persisted for up to 10 seconds, while nuclear spins were stable for up to ...
