Leggett–garg inequalities

C Emary, N Lambert, F Nori - Reports on Progress in Physics, 2013 - iopscience.iop.org
In contrast to the spatial Bell's inequalities which probe entanglement between spatially
separated systems, the Leggett–Garg inequalities test the correlations of a single system …

Quasiprobability distribution for heat fluctuations in the quantum regime

A Levy, M Lostaglio - PRX Quantum, 2020 - APS
The standard approach to deriving fluctuation theorems fails to capture the effect of quantum
correlation and coherence in the initial state of the system. Here, we overcome this difficulty …

Full distribution of work done on a quantum system for arbitrary initial states

P Solinas, S Gasparinetti - Physical Review E, 2015 - APS
We propose an approach to define and measure the statistics of work, internal energy and
dissipated heat in a driven quantum system. In our framework the presence of a physical …

Measuring ultrasmall time delays of light by joint weak measurements

G Strübi, C Bruder - Physical review letters, 2013 - APS
We propose to use weak measurements away from the weak-value amplification regime to
carry out precision measurements of time delays of light. Our scheme is robust to several …

Work fluctuations and entanglement in quantum batteries

S Imai, O Gühne, S Nimmrichter - Physical Review A, 2023 - APS
We consider quantum batteries given by composite interacting quantum systems in terms of
the thermodynamic work cost of local random unitary processes. We characterize quantum …

Probing quantum interference effects in the work distribution

P Solinas, S Gasparinetti - Physical Review A, 2016 - APS
What is the role of coherence in determining the distribution of work done on a quantum
system? We approach this question from an operational perspective and consider a setup in …

Nonclassical time correlation functions in continuous quantum measurement

A Bednorz, W Belzig, A Nitzan - New Journal of Physics, 2012 - iopscience.iop.org
A continuous projective measurement of a quantum system often leads to a suppression of
the dynamics, known as the Zeno effect. Alternatively, generalized nonprojective, so …

Negative full counting statistics arise from interference effects

PP Hofer, AA Clerk - Physical Review Letters, 2016 - APS
The Keldysh-ordered full counting statistics is a quasiprobability distribution describing the
fluctuations of a time-integrated quantum observable. While it is well known that this …

Quasi-probability distributions for observables in dynamic systems

PP Hofer - Quantum, 2017 - quantum-journal.org
We develop a general framework to investigate fluctuations of non-commuting observables.
To this end, we consider the Keldysh quasi-probability distribution (KQPD). This distribution …

Measurement-dependent corrections to work distributions arising from quantum coherences

P Solinas, HJD Miller, J Anders - Physical Review A, 2017 - APS
For a quantum system undergoing a unitary, process work is commonly defined based on
the two projective measurement protocols, which measures the energies of the system …