Bohr’s Breakthrough: Quantum Jumps, Quantum States, and Transitions Without Connections

2021 ◽  
pp. 83-100
Author(s):  
Arkady Plotnitsky
Keyword(s):  
Quantum States ◽  
Quantum Jumps

Quantum jumps, Born’s rule, and objective classical reality via quantum Darwinism

2019 ◽  
pp. 292-325
Author(s):  
Wojciech Hubert Zurek
Keyword(s):  
Quantum Dynamics ◽  
Quantum States ◽  
Information Flows ◽  
Quantum Jumps ◽  
Born’S Rule ◽  
Quantum Universe ◽  
Quantum Darwinism ◽  
Pointer States ◽  
Entangled Quantum States

Emergence of the classical from the quantum substrate is a long-standing conundrum. The chapter describes its resolution based on three insights that stem from the recognition of the role of the environment. The chapter begins with the derivation of preferred states that define “events”, the essence of everyday classical reality. They arise from the tension between the unitary quantum dynamics and the nonlinear amplification inherent in replicating information. The resulting pointer states are consistent with these obtained via environment-induced superselection (einselection). They determine what can happen by defining events such as quantum jumps without appealing to Born’s rule for probabilities. Probabilities can be now deduced from envariance (a symmetry of entangled quantum states). With probabilities at hand one can quantify information flows accompanying decoherence. Effective amplification they represent explains perception of objective classical reality arising from within the quantum universe through redundancy of the pointer state records in their environment—through quantum Darwinism.

Are there quantum jumps

2014 ◽  
Vol 33 ◽  
pp. 1460358
Author(s):  
D. K. Ferry
Keyword(s):  
Perturbation Theory ◽  
Quantum Mechanics ◽  
Time Dependence ◽  
Quantum States ◽  
Smooth Transition ◽  
Wave Mechanics ◽  
Incoming Wave ◽  
Quantum Jumps ◽  
Quantum Jump ◽  
History Of

Generally, one thinks of a “quantum jump” as the process in which an electron “jumps” between a pair of quantum states, even as the process is treated within perturbation theory. This jump of an electron has remained a key point of conservative (i.e., traditional) quantum mechanics. But, the question of the time dependence of such a transition, e.g. the time for an atom to be ionized by radiation, is somewhat different than this view. A detailed approach in which an incoming wave first polarizes the quantum states and then completes the transition has allowed for a detailed discussion of the smooth transition of the electron from one state to the next. Here, we will discuss the history of the process, and illustrate the approach with the question of “how long does it take for an electron to emit a phonon?” The entire process arises from the proper application of wave mechanics and obviates the need to even consider a discussion of quantum jumps.

Geometry of Quantum States

2006 ◽  
Author(s):  
Ingemar Bengtsson ◽  
Karol Zyczkowski
Keyword(s):  
Quantum States

Transport of quantum states of periodically driven systems

1990 ◽  
Vol 51 (8) ◽  
pp. 709-722 ◽  
Author(s):  
H.P. Breuer ◽  
K. Dietz ◽  
M. Holthaus
Keyword(s):  
Quantum States ◽  
Driven Systems ◽  
Periodically Driven

Quantum States & Processes

1994 ◽  
Vol 187 (Part_1) ◽  
pp. 156-156
Author(s):  
H.-J. Unger
Keyword(s):  
Quantum States
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