Wed Oct 08 04:27:44 UTC 2025: Here’s a summary and a news article based on the provided text:
**Summary:**
The 2025 Nobel Prize in Physics has been awarded to John Clarke, Michel Devoret, and John Martinis for their groundbreaking experimental work demonstrating quantum tunneling in macroscopic electrical circuits. This research, building upon the theoretical foundations laid by Brian Josephson and Anthony Leggett, showed that quantum phenomena, previously thought to be limited to the subatomic realm, can occur in systems large enough to be seen with the naked eye. Josephson’s work described how Cooper pairs of electrons could tunnel through an insulating barrier between superconductors, while Leggett proposed that an entire circuit’s collective state could behave as a quantum object. Clarke, Devoret, and Martinis created incredibly clean Josephson junctions cooled to near absolute zero and experimentally confirmed macroscopic quantum tunneling and quantized energy levels. Their work is foundational to the development of superconducting qubits, the building blocks of quantum computers.
**News Article:**
**Quantum Leap! Trio Wins Nobel for Showing Quantum Effects in Everyday Circuits**
**October 8, 2025, 09:57 IST**
**NEW DELHI:** The 2025 Nobel Prize in Physics has been awarded to John Clarke, Michel Devoret, and John Martinis for their revolutionary experiments demonstrating that quantum mechanics isn’t just for tiny particles. Their research proves that quantum phenomena like tunneling, where particles pass through energy barriers instead of climbing over them, can occur in electrical circuits large enough to see.
This groundbreaking work builds upon decades of theoretical physics, notably the work of Brian Josephson, who first described how pairs of electrons could tunnel through an insulating barrier between two superconductors, and Anthony Leggett, who proposed that an entire circuit’s collective state could itself behave as a quantum object.
Clarke, Devoret, and Martinis meticulously engineered Josephson junctions – sandwiches of two superconductors separated by an insulator – and cooled them to extremely low temperatures. Their experiments revealed that these circuits exhibited macroscopic quantum tunneling, confirming Leggett’s theory. This means the electrical current in these circuits could “tunnel” through energy barriers, bypassing classical physics’ expectations.
The implications of this discovery are far-reaching, particularly in the field of quantum computing. The research of the laureates has formed the basis for the superconducting qubit, the fundamental unit of information in quantum computers. This is thanks to quantum tunnelling that can be harnessed.
“This prize recognizes the power of quantum mechanics not just in the realm of the infinitesimally small, but in systems we can actually build and control,” said a statement from the Nobel Committee. “It paves the way for new technologies, particularly in the rapidly developing field of quantum computation.”
The winners will share the prize money of 10 million Swedish krona (approximately $900,000 USD).
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