4 ms·
In terms of mass it takes us halfway there already, from 10^30kg to 10^-3kg, with quantum effects arriving around 10^-15kg. And in terms of force, the article
by crubier 6y ago
In terms of mass it takes us halfway there already, from 10^30kg to 10^-3kg, with quantum effects arriving around 10^-15kg.
And in terms of force, the article states that the force involved in that experiment is equivalent to the force of earth gravity on a mass of 10^–15kg, which is probably even closer to the energy of a graviton.
- penetraitor69 6y agoDepending on how you're cutting it, you could also call it 1/1000000000000 of the way there.
- seanhunter 6y agoThat's half (within some tolerance).
- abdullahkhalids 6y agoWhy do you say that quantum effects arise at 10^-15kg? The carbon atom is about 2x10^-26 kg. And I don't think we can put objects much larger than a few atom molecules into a superposition of two locations.
- johncolanduoni 6y agoIt depends on the nature of the quantization of the gravitational field. If we expect the gravitational field itself to be quantized in a manner somewhat similar to the electromagnetic field, we may be able to detect quantum effects without the objects being particularly small. A good analogue is the photoelectric effect, which involves no superposition at all and can be observed even with macro amounts of energy involved.
- FeepingCreature 6y agoNot sure if this has held up, but Google points at this 2010 paper that put a microscopic object into a superposition: https://www.researchgate.net/publication/232755709_Quantum_ground_state_and_single-phonon_control_of_a_mechanical_resonator https://www.researchgate.net/publication/232755709_Quantum_g...