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Researchers propose traversable wormholes without exotic matter, linking quantum teleportation to black hole information, while quantum‑computer simulations
A recent theoretical breakthrough suggests that a wormhole could remain open without the need for exotic negative‑energy material, using a quantum connection between two black holes to generate the required repulsive energy [1]. At the same time, claims of a wormhole‑like simulation on Google’s Sycamore quantum computer have sparked controversy over whether the results truly demonstrate a wormhole or can be explained by more conventional quantum processes [2].
Key takeaways
The idea of a wormhole as a shortcut through spacetime first entered popular culture when Carl Sagan’s novel Contact featured a protagonist traveling via a black hole, prompting physicist Kip Thorne to explore whether a “tunnel” could be made traversable [1]. Decades of theoretical work led to the realization that ordinary wormholes collapse instantly, requiring “exotic material” with negative energy to keep them open. In 2019, a team led by Ping Gao, Daniel Jafferis, and Aron Wall proposed a different route: if two black holes are linked in a specific quantum state, the negative energy needed at the throat can be generated from outside the system [1]. Their calculations show that an object entering one black hole would emerge from the other, mirroring the steps of quantum teleportation—a process that moves quantum information without moving the physical carrier.
The proposal draws directly from Juan Maldacena’s “ER = EPR” conjecture, which posits that Einstein‑Rosen bridges (wormholes) and Einstein‑Podolsky‑Rosen entangled pairs are two descriptions of the same phenomenon [1]. By extending this idea to traversable wormholes, the researchers suggest that spacetime geometry and quantum entanglement are intimately connected, offering a potential resolution to the long‑standing black‑hole information paradox. If information can escape a black hole via a traversable wormhole, it would preserve the principle of unitarity that underlies quantum mechanics [1].
In November 2022, a separate group of physicists announced that they had simulated a wormhole inside Google’s Sycamore quantum computer, claiming that information injected into one set of simulated particles emerged from a second, spatially separated set [2]. The experiment relied on the Sachdev–Ye–Kitaev (SYK) model, a complex system of interacting particles that is difficult for classical computers to solve efficiently [2]. By simplifying the SYK model, the team reported that the quantum processor could mimic the behavior of a traversable wormhole, effectively demonstrating quantum teleportation in a laboratory setting.
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AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 2 outlets · Jun 13, 2026 · How we report
Yes, wormholes are predicted by the theory of general relativity, but their existence remains hypothetical.
Some physicists suggest that wormholes could be traversable with exotic matter, but others propose that microscopic wormholes may be possible without it.
The Einstein-Rosen bridge is a type of wormhole that connects two parts of spacetime, discovered by Ludwig Flamm in 1916.
However, critics quickly pointed out that the same results could be reproduced with classical calculations, arguing that the observed “wormhole” behavior might be an artifact of the model’s simplifications rather than evidence of a genuine spacetime tunnel [2]. Hrant Gharibyan of Caltech noted that the simulation was “very easy to do classically,” suggesting that the claim may overstate the novelty of the quantum‑computer implementation [2]. The original researchers have defended their findings, but the debate underscores the difficulty of translating abstract theoretical constructs into experimental proof.
Both the theoretical proposal of a quantum‑entanglement‑stabilized wormhole and the contested quantum‑computer simulation highlight a pivotal moment in the quest to unify general relativity with quantum mechanics. If traversable wormholes can exist without exotic matter, they provide a concrete framework for testing ideas about black‑hole interiors and information preservation, potentially reshaping our understanding of quantum gravity [1]. Meanwhile, the controversy over the Sycamore experiment illustrates the challenges of experimentally probing such high‑energy phenomena with current quantum‑hardware capabilities [2]. Future work will need more sophisticated simulations and, perhaps, new observational strategies to determine whether wormholes remain a theoretical curiosity or become a testable feature of the universe.
The Schwarzschild wormhole is a type of wormhole that would collapse too quickly for anything to cross from one end to the other.
Exotic matter is a type of matter with negative energy density that could potentially be used to stabilize wormholes.