Nonperturbative theory of weak pre-and post-selected measurements
This paper starts with a brief review of the topic of strong and weak pre-and post-selected
(PPS) quantum measurements, as well as weak values, and afterwards presents original …
(PPS) quantum measurements, as well as weak values, and afterwards presents original …
Unifying theory of quantum state estimation using past and future information
Quantum state estimation for continuously monitored dynamical systems involves assigning
a quantum state to an individual system at some time, conditioned on the results of …
a quantum state to an individual system at some time, conditioned on the results of …
Quantum fluctuation theorems, contextuality, and work quasiprobabilities
M Lostaglio - Physical review letters, 2018 - APS
We discuss the role of contextuality within quantum fluctuation theorems, in the light of a
recent no-go result by Perarnau-Llobet et al. We show that any fluctuation theorem …
recent no-go result by Perarnau-Llobet et al. We show that any fluctuation theorem …
Significance of the imaginary part of the weak value
Unlike the real part of the generalized weak value of an observable, which can in a restricted
sense be operationally interpreted as an idealized conditioned average of that observable in …
sense be operationally interpreted as an idealized conditioned average of that observable in …
Weak-to-strong transition of quantum measurement in a trapped-ion system
Quantum measurement remains a puzzle through its stormy history from the birth of quantum
mechanics to state-of-the-art quantum technologies. Two complementary measurement …
mechanics to state-of-the-art quantum technologies. Two complementary measurement …
Quantifying the presence of a neutron in the paths of an interferometer
H Lemmel, N Geerits, A Danner, HF Hofmann… - Physical Review …, 2022 - APS
It is commonly assumed that no accurate experimental information can be obtained on the
path taken by a particle when quantum interference between the paths is observed …
path taken by a particle when quantum interference between the paths is observed …
The case of the disappearing (and re-appearing) particle
A novel prediction is derived by the Two-State-Vector-Formalism (TSVF) for a particle
superposed over three boxes. Under appropriate pre-and post-selections, and with …
superposed over three boxes. Under appropriate pre-and post-selections, and with …
Limits on amplification by Aharonov-Albert-Vaidman weak measurement
T Koike, S Tanaka - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
We analyze the amplification by the Aharonov-Albert-Vaidman weak quantum measurement
on a Sagnac interferometer [Dixon, Phys. Rev. Lett. 102, 173601 (2009) PRLTAO 0031 …
on a Sagnac interferometer [Dixon, Phys. Rev. Lett. 102, 173601 (2009) PRLTAO 0031 …
Complex joint probabilities as expressions of reversible transformations in quantum mechanics
HF Hofmann - New Journal of Physics, 2012 - iopscience.iop.org
The density operator of a quantum state can be represented as a complex joint probability of
any two observables whose eigenstates have non-zero mutual overlap. Transformations to a …
any two observables whose eigenstates have non-zero mutual overlap. Transformations to a …
Uncertainty limits for quantum metrology obtained from the statistics of weak measurements
HF Hofmann - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
Quantum metrology uses small changes in the output probabilities of a quantum
measurement to estimate the magnitude of a weak interaction with the system. The …
measurement to estimate the magnitude of a weak interaction with the system. The …