The greatest misunderstanding that modern science still hasn’t realized is this: It keeps assuming that “quantum = information.” But in reality, a quantum is not information itself it’s the reactional result of information. What happens when you mistake a quantum for information itself? You end up with the “measurement problem” that can never be solved. The so-called “wavefunction collapse” that occurs upon observation is simply what happens when you look at information after the fact. That backward view creates the paradox. In truth, observation = regeneration of information. A quantum is the result of information. Information gives birth to the quantum. What science has not yet understood is the direction of causality between information and the quantum. Modern physics: Quantum → Information (observation yields information) f-bit theory: Information (Δf × I) → Quantum (appears as interference) Scientists still haven’t realized that a quantum is not information itself. They mistake the result for the origin. But in f-bit theory, the origin is Δf × I, and the result is the quantum. Information comes first — observation follows. Q. Original Definer of the f-bit Theory (Japan)
3 days ago | 1
Any supposed "violation" of any laws of physics is always simply physics rediscovered.
1 week ago | 7
It's not that heat always flows to colder places, but that it's statistically a lot more likely.
1 week ago | 5
Scientists today do this all the time with quantum computing, LIGO, etc with laser light!
1 week ago | 0
Any (meta) material able to transfer (remaining or residual) heat from a colder object to a hotter object would bring about a whole new type of cooling. Imagine (jet) engines feeling cold or freezing without use of super expensive materials and coatings.
1 week ago | 1
wait isn't the point of the entire field of thermodynamics the study of maceostates of systems containing a very large number of particles? i haven't read the paper but 2 entangled particles is too small for thermodynamics to apply
1 week ago | 1
Quanta Magazine
If there’s one law of physics that seems easy to grasp, it’s the second law of thermodynamics: Heat flows spontaneously from hotter bodies to colder ones. But now, gently and almost casually, Alexssandre de Oliveira Jr. has just shown me I didn’t truly understand it at all.
Take this hot cup of coffee and this cold jug of milk, the Brazilian physicist said as we sat in a café in Copenhagen. Bring them into contact and, sure enough, heat will flow from the hot object to the cold one, just as the German scientist Rudolf Clausius first stated formally in 1850. However, in some cases, de Oliveira explained, physicists have learned that the laws of quantum mechanics can drive heat flow the opposite way: from cold to hot.
This doesn’t really mean that the second law fails, he added as his coffee reassuringly cooled. It’s just that Clausius’ expression is the “classical limit” of a more complete formulation demanded by quantum physics.
Physicists began to appreciate the subtlety of this situation more than two decades ago and have been exploring the quantum mechanical version of the second law ever since. Now, de Oliveira, a postdoctoral researcher at the Technical University of Denmark, and colleagues have shown that the kind of “anomalous heat flow” that’s enabled at the quantum scale could have a convenient and ingenious use.
It can serve, they say, as an easy method for detecting “quantumness” — sensing, for instance, that an object is in a quantum “superposition” of multiple possible observable states, or that two such objects are entangled, with states that are interdependent — without destroying those delicate quantum phenomena. Such a diagnostic tool could be used to ensure that a quantum computer is truly using quantum resources to perform calculations. It might even help to sense quantum aspects of the force of gravity, one of the stretch goals of modern physics.
🔗 Keep reading: www.quantamagazine.org/a-thermometer-for-measuring…
🎨 Daniel Garcia for Quanta Magazine
1 week ago (edited) | [YT] | 813