229 citations · 244 across the 8 of their papers we have counts for
8 papers
The real and imaginary parts of a weak value appearing as back-actions via a post-selection
Kazuhiro Yokota
In a weak measurement the real and imaginary parts of a weak value participate in the shifts of the complementary variables of a pointer. While the real part represents the value o…
Linear optics for direct observation of quantum violation of pigeonhole principle by joint weak measurement
Kazuhiro Yokota, Nobuyuki Imoto
When three pigeons are in two pigeonholes, at least two of them should be in the same pigeonhole, which is called pigeonhole principle. Recently Aharonov el al have shown that the…
Negation of photon loss provided by negative weak value
Kazuhiro Yokota, Nobuyuki Imoto
We propose a usage of a weak value for a quantum processing between preselection and postselection. While the weak value of a projector of 1 provides a process with certainty like…
When a negative weak value -1 plays the counterpart of a probability 1
Kazuhiro Yokota, Nobuyuki Imoto
When the weak value of a projector is 1, a quantum system behaves as in that eigenstate with probability 1. By definition, however, the weak value may take an anomalous value lying…
A weak-value interpretation of the Schwinger mechanism of massless/massive pair productions
Kazuhiro Yokota, Nobuyuki Imoto
According to the Schwinger mechanism, a uniform electric field brings about pair productions in vacuum; the relationship between the production rate and the electric field is diffe…
A weak-value model for virtual particles supplying the electric current in graphene: the minimal conductivity and the Schwinger mechanism
Kazuhiro Yokota, Nobuyuki Imoto
We propose a model for the electric current in graphene in which electric carriers are supplied by virtual particles allowed by the uncertainty relations. The process to make a vir…
A strange weak value in spontaneous pair productions via a supercritical step potential
Kazuhiro Yokota, Nobuyuki Imoto
We consider a case where a weak value is introduced as a physical quantity rather than an average of weak measurements. The case we treat is a time evolution of a particle by 1+1 d…
Direct observation of Hardy's paradox by joint weak measurement with an entangled photon pair
Kazuhiro Yokota, Takashi Yamamoto, Masato Koashi +1
We implemented a joint weak measurement of the trajectories of two photons in a photonic version of Hardy's experiment. The joint weak measurement has been performed via an entangl…