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Main positions:Director, High Performance Computing Platform, PKU
Degree:Doctoral degree
Status:Employed
School/Department:Institute of Theoretical Physics

Lei Yian

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Education Level: Postgraduate (Doctoral)

Administrative Position: Associate Professor

Alma Mater: Peking University

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Natural Quantum Interpretation of Electroweak Symmetry Breaking: From Abstraction to Orientation
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From the perspective of Natural Quantum Theory (NQT),
electroweak symmetry breaking is not a mysterious “vacuum choosing” event caused by the Higgs field—it is simply the moment when

an abstract intrinsic spin (or magnetic moment) acquires a real spatial orientation.

In Instrumental Quantum Theory, “spin” is defined as an abstract representation of SU(2) × U(1) symmetry,
a purely algebraic label with no physical geometry.
To make this label correspond to measurable quantities—such as magnetic moments and weak chirality—the theory must “select a direction” in the vacuum, a process described as symmetry breaking.

In other words, “symmetry breaking” is a mathematical repair mechanism:
since intrinsic spin lacks a physical direction, the model imposes one artificially, mapping group representations to spacetime geometry.
A purely formal algebraic symmetry (SU(2)) is thus forced to “choose a direction,” and this forced mapping is what we call the Higgs mechanism.

In Natural Quantum Theory, however, this process arises naturally:
particles like electrons and quarks already possess real rotating field structures and magnetic orientations.
The magnetic moment is not an abstract algebraic term—it is a real rotation of the electromagnetic field.
Hence, symmetry breaking is not a mystical process but a geometric necessity:

When a real magnetic moment attains spatial direction, the abstract symmetry is automatically “broken.”

This is analogous to the difference between a map’s abstract ‘north’ and the Earth’s real magnetic north
the emergence of direction is not symmetry loss, but the realization of geometry.

From this perspective:

  • The Higgs field merely encodes the algebraic form of “magnetic alignment”;

  • The vacuum expectation value represents the acquisition of real geometrical orientation;

  • Weak chirality is the natural projection of electromagnetic rotation in weakly coupled systems;

  • The origin of mass corresponds to the localization and energy constraint of these rotational field modes.

Therefore, in NQT:

Electroweak symmetry breaking is not the destruction of symmetry, but its embodiment in physical space.