Results 51 to 60 of about 69,539 (295)

Entanglement and the Thermodynamic Arrow of Time [PDF]

, 2010
We discuss quantum entanglement in the context of the thermodynamic arrow of time. We review the role of correlations in entropy-decreasing events and prove that the occurrence of a transformation between two thermodynamic states constitutes a new type ...
A. Peres, David Jennings, H. D. Zeh, H. Price, J. C. Maxwell, R. Penrose, Terry Rudolph, W. H. Zurek   +7 more
core   +2 more sources

Geometrical bounds on irreversibility in open quantum systems [PDF]

, 2018
Clausius inequality has deep implications for reversibility and the arrow of time. Quantum theory is able to extend this result for closed systems by inspecting the trajectory of the density matrix on its manifold.
Barbieri, Marco, Booth, Robert I., Cavina, Vasco, De Pasquale, Antonella, Gianani, Ilaria, Giovannetti, Vittorio, Mancino, Luca, Roccia, Emanuele, Sbroscia, Marco   +8 more
core   +2 more sources

Out of equilibrium: understanding cosmological evolution to lower-entropy states [PDF]

, 2011
Despite the importance of the Second Law of Thermodynamics, it is not absolute. Statistical mechanics implies that, given sufficient time, systems near equilibrium will spontaneously fluctuate into lower-entropy states, locally reversing the ...
A. Aguirre, A. Albrecht, A. Ashtekar, A. Strominger, A.D. Linde, A.D. Linde, A.H. Guth, A.J. Tolley, Anthony Aguirre, D. Adams, D. Albert, D. Harlow, D.N. Page, G. Horowitz, J. Garriga, J.A. Peacock, J.M. Maldacena, L. Dyson, L. Dyson, L. Kofman, L. Susskind, L. Susskind, L.S. Schulman, M. Gell-Mann, Matthew C Johnson, R. Adler, R. Bousso, R. Parentani, S. Hawking, S.M. Carroll, S.M. Carroll, S.M. Carroll, S.W. Hawking, Sean M Carroll, T. Banks, T. Banks, T. Banks, T. Banks, T. Banks, X. Dong, Y. Aharonov, Y. Aharonov   +41 more
core   +2 more sources

Entropy production in systems with unidirectional transitions

Physical Review Research, 2020
The entropy production is one of the most essential features for systems operating out of equilibrium. The formulation for discrete-state systems goes back to the celebrated Schnakenberg's work and hitherto can be carried out when for each transition ...
D. M. Busiello, D. Gupta, A. Maritan
doaj   +1 more source

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Thermodynamics of the $$R_{\mathrm{h}}=ct$$ R h = c t Universe: a simplification of cosmic entropy

European Physical Journal C: Particles and Fields, 2021
In the standard model of cosmology, the Universe began its expansion with an anomalously low entropy, which then grew dramatically to much larger values consistent with the physical conditions at decoupling, roughly 380,000 years after the Big Bang ...
Fulvio Melia
doaj   +1 more source

Entropic Dynamics, Time and Quantum Theory [PDF]

, 2011
Quantum mechanics is derived as an application of the method of maximum entropy. No appeal is made to any underlying classical action principle whether deterministic or stochastic.
't Hooft G G, Adler S L, Adler S L, Ariel Caticha, Barbour J, Barbour J, Barbour J, Bohm D, Brukner C, Brukner C Zukowski M Zeilinger A, Caticha A, Caticha A, Caticha A, Caticha A, Caticha A, Caticha A, Fritsche L Haugk M, Fuchs C, Goyal P, Hall M J W, Hardy L, Jaynes E T, Jaynes E T, Jaynes E T, Nelson E, Olavo L S F, Pauli W, Pauli W, Price H, Smolin L, Smolin L, Wheeler J A, Zeh H D   +32 more
core   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Can the Arrow of Time be understood from Quantum Cosmology?

, 2009
I address the question whether the origin of the observed arrow of time can be derived from quantum cosmology. After a general discussion of entropy in cosmology and some numerical estimates, I give a brief introduction into quantum geometrodynamics and ...
A. Simone, A.A. Starobinsky, B.S. DeWitt, C. Kiefer, C. Kiefer, C. Kiefer, C. Kiefer, C.A. Egan, G. Hinshaw, G.W. Gibbons, H.D. Zeh, J.J. Halliwell, M. Albers, M. Novello, R. Holman, R. Penrose   +15 more
core   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source