Avoiding back-action in quantum measurements

Science ◽  
2014 ◽  
Vol 344 (6189) ◽  
pp. 1238-1238
Author(s):  
I. S. Osborne
Keyword(s):  
Quantum Measurements ◽  
Back Action

scholarly journals Quantum Euler Relation for Local Measurements

Entropy ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 889
Author(s):  
Akram Touil ◽  
Kevin Weber ◽  
Sebastian Deffner
Keyword(s):  
Quantum Systems ◽  
Quantum Measurements ◽  
Weak Coupling Regime ◽  
Local Quantum ◽  
Dissipation Model ◽  
Local Measurements ◽  
Euler Relation ◽  
Quantum Analog ◽  
Back Action ◽  
Classical Thermodynamics

In classical thermodynamics the Euler relation is an expression for the internal energy as a sum of the products of canonical pairs of extensive and intensive variables. For quantum systems the situation is more intricate, since one has to account for the effects of the measurement back action. To this end, we derive a quantum analog of the Euler relation, which is governed by the information retrieved by local quantum measurements. The validity of the relation is demonstrated for the collective dissipation model, where we find that thermodynamic behavior is exhibited in the weak-coupling regime.

scholarly journals Measuring coherence of quantum measurements

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Valeria Cimini ◽  
Ilaria Gianani ◽  
Marco Sbroscia ◽  
Jan Sperling ◽  
Marco Barbieri
Keyword(s):  
Quantum Measurements

scholarly journals QUANTUM MEASUREMENTS, INFORMATION AND ENTROPY PRODUCTION

1999 ◽  
Vol 13 (28) ◽  
pp. 3369-3382 ◽  
Author(s):  
Y. N. SRIVASTAVA ◽  
G. VITIELLO ◽  
A. WIDOM
Keyword(s):  
Entropy Production ◽  
Information Entropy ◽  
Quantum Measurements ◽  
Second Law ◽  
Quantum Object ◽  
Measurement Apparatus ◽  
Thermodynamic Entropy ◽  
Classical Measurement ◽  
The Relationship

In order to understand the Landau–Lifshitz conjecture on the relationship between quantum measurements and the thermodynamic second law, we discuss the notion of "diabatic" and "adiabatic" forces exerted by the quantum object on the classical measurement apparatus. The notion of heat and work in measurements is made manifest in this approach and the relationship between information entropy and thermodynamic entropy is explored.

scholarly journals Self-induced back action actuated nanopore electrophoresis (SANE)

2018 ◽  
Vol 29 (43) ◽  
pp. 435501 ◽  
Author(s):  
Muhammad Usman Raza ◽  
Sai Santosh Sasank Peri ◽  
Liang-Chieh Ma ◽  
Samir M Iqbal ◽  
George Alexandrakis
Keyword(s):  
Back Action

Exchange statistics, charge detection and back-action dephasing by a mesoscopic beam collider

2008 ◽  
Vol 20 (39) ◽  
pp. 395212 ◽  
Author(s):  
Youngnae Lee ◽  
Gyong Luck Khym ◽  
Kicheon Kang
Keyword(s):  
Charge Detection ◽  
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