In the normal to a superfluid phase transition, U(1) symmetry related to particle number conservation is spontaneously broken which seems to imply that the superfluid state is a state in which there is no definite number of particles? This property is shared by that of a coherent state or any arbitrary superposition of number operator eigenstates.

Is there some other property of the superfluid state which tells that it's a coherent state and not any arbitrary superposition of number operator eigenstates?

Is there any property of the superfluid state that is not shared by a coherent state?

In the normal to a superfluid phase transition, U(1) symmetry related to particle number conservation is spontaneously broken which seems to imply that the superfluid state is a state in which there is no definite number of particles? This property is shared by that of a coherent state or any arbitrary superposition of number operator eigenstates.

Is there any property of the superfluid state (the condensate wavefunction) that is not shared by a coherent state?

In the normal to a superfluid phase transition, U(1) symmetry related to particle number conservation is spontaneously broken which seems to imply that the superfluid state is a state in which there is no definite number of particles? This property is shared by that of a coherent state or any arbitrary superposition of number operator eigenstates.

Is there some other property of the superfluid state which tells that it's a coherent state and not any arbitrary superposition of number operator eigenstates?

In the normal to a superfluid phase transition, U(1) symmetry related to particle number conservation is spontaneously broken which seems to imply that the superfluid state is a state in which there is no definite number of particles? This property is shared by that of a coherent state or any arbitrary superposition of number operator eigenstates.

Is there some other property of the superfluid state which tells that it's a coherent state and not any arbitrary superposition of number operator eigenstates?

Is there any property of the superfluid state that is not shared by a coherent state?

There is a ${\rm U(1)}$ breaking associated with normal to a superfluid phase transition. What does this ${\rm U(1)}$ symmetry physically correspond to?

In the normal to a superfluid phase transition, U(1) symmetry related to particle number conservation is spontaneously broken which seems to imply that the superfluid state is a state in which there is no definite number of particles? This property is shared by that of a coherent state or any arbitrary superposition of number operator eigenstates.

Is there some other property of the superfluid state which tells that it's a coherent state and not any arbitrary superposition of number operator eigenstates?