Researchers are challenging fundamental assumptions about time and gravity, suggesting the Friedmann-Lemaître-Robertson-Walker (FLRW) cosmological model can emerge from spherically symmetric stationary solutions in four-dimensional Euclidean space without presupposing gravity. O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania, proposes a framework where the squared amplitude of a stationary wavefunction is interpreted as the probability density for each definite value of intrinsic time, potentially leading to curvature in all spacetime dimensions if a unique direction of time doesn’t exist. The accuracy of empirical data, and even the existence of classical and quantum computing, suggest the existence of irreversible changes. This leads to the possibility of exact time observables, even if they are not monotonically correlated with the Schrödinger parameter. This work suggests the Wheeler-DeWitt constraint equation may be bypassed, opening a path toward emergent gravity where general relativity arises from these observables rather than being a fundamental law.
The notion that time itself is an illusion, a byproduct of quantum mechanics, gains traction with new research suggesting the universe’s expansion and even gravity may emerge from a fundamentally timeless state. O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania proposes a universe where the familiar force of gravity isn’t a foundational law, but rather a consequence of how we perceive change. Stoica’s work leads to a bypass of the Wheeler-DeWitt equation, a cornerstone of canonical quantum gravity that seemingly eliminates time. However, this “timelessness is in fact much more general, being an effect of intrinsic time observables,” he explains. This framework allows for the possibility that the Friedmann-Lemaître-Robertson-Walker cosmological model emerges from spherically symmetric stationary solutions in four-dimensional Euclidean space without presupposing gravity. The accuracy of empirical data, and even the very existence of classical and quantum computing, suggest the existence of irreversible changes.
Recent theoretical work is challenging conventional understandings of time’s role in the universe, proposing that the familiar progression of moments may not be fundamental, but rather an emergent property arising from macroscopic observations. O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania proposes that the Friedmann-Lemaître-Robertson-Walker cosmological model can emerge from spherically symmetric stationary solutions in four-dimensional Euclidean space without presupposing gravity. The implications are significant, potentially redefining our understanding of gravity not as a force of spacetime, but as a consequence of how we measure time within it. The accuracy of empirical data, and the existence of computing, suggest the existence of irreversible changes, further motivating the search for viable time observables.
O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania, proposes a framework where the very fabric of spacetime emerges not from gravity as a fundamental force, but from the quantum properties of time itself. Stoica’s approach centers on reinterpreting the wavefunction of the universe, moving beyond the traditional Wheeler-DeWitt equation, which seemingly eliminates time from the cosmological picture. Instead, he proposes a framework built from macroscopic observables, allowing for the recovery of dynamic behavior from static quantum states. Curvature emerges in the time direction by interpreting the squared amplitude as the probability density for each definite value of intrinsic time. Even with a flat initial space, where the potential V equals zero, curvature can still arise, without presupposing gravity. This means that curvature emerges, rather than spacetime being a byproduct of quantum probabilities.
The quest to reconcile quantum mechanics with gravity has led researchers to explore radical ideas about the nature of time itself, and recent work proposes that spacetime geometry may not be fundamental, but rather emerge from the quantum realm. O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania, writes, emphasizing the statistical nature of this emergent spacetime. This suggests that the expansion of the universe, and its associated curvature, could be a natural consequence of the underlying quantum mechanics.
The conventional understanding of time as a universal, uniformly flowing parameter may be fundamentally flawed. O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania proposes that the perception of temporal progression isn’t absolute, but rather emerges from the weighting of quantum states within Page-Wootters systems. This leads to the possibility that general relativity or some modification of it emerges from intrinsic time observables. Stoica notes that while this doesn’t affect conditional expectation values, it does influence the rate of time’s flow, altering the probability of observing specific temporal intervals.
Uniformizing Intrinsic Time and Effective Schrödinger Equation
A universe without gravity may still expand, according to new theoretical work proposed by O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania, suggesting that cosmological models emerge from the very fabric of quantum time. The accuracy of our empirical data, and even the very existence of classical and quantum computing, suggest the existence of irreversible changes. This leads to the possibility of bypassing the Wheeler-DeWitt equation, where general relativity or some modification of it emerges from intrinsic time observables. Recent investigations are increasingly focused on deriving cosmological models not from established gravitational theories, but from the fundamental properties of quantum states. The core concept involves treating time not as a pre-existing parameter, but as a property derived from macroscopic systems, clocks, planetary orbits, and even the cosmic background radiation, and their associated observables.
For example, the Friedmann-Lemaître-Robertson-Walker cosmological model emerges from spherically symmetric stationary solutions in four-dimensional Euclidean space without presupposing gravity. Even with a flat initial space, where the potential V equals zero, curvature can still arise, indicating curvature can arise without presupposing gravity. This means that curvature emerges, rather than spacetime being a byproduct of quantum probabilities.
Recent investigations derive cosmological models not from established gravitational theories, but from the fundamental properties of quantum states; specifically, O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania. This research proposes a pathway toward understanding how the large-scale structure of the universe could arise from quantum principles, without presupposing gravity.
O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania. The core concept involves treating time not as a pre-existing parameter, but as a property derived from macroscopic systems, clocks, planetary orbits, and even the cosmic background radiation, and their associated observables. “This amounts to acquiring curvature on a flat space just from the quantum time observable, without presupposing gravity,” he explains.
O.C. Stoica Dept. Th. Physics, NIPNE-HH, Bucharest, Romania, proposes a framework that leads to bypassing the Wheeler-DeWitt equation that typically eliminates time from canonical quantum gravity. Even with a flat initial space, where the potential V equals zero, curvature can still arise without presupposing gravity, indicating gravity isn’t necessarily a prerequisite for spacetime distortion. Stoica posits that “general relativity or some modification of it emerges from intrinsic time observables,” shifting the focus from a fundamental gravitational field to the properties of time itself.
Source: https://arxiv.org/abs/2607.05020
